initial commit

.gitattributes

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+*.pbxproj -text

.npmignore

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+# Created by .ignore support plugin (hsz.mobi)
+examples
+.idea

LICENSE

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+MIT License
+
+Copyright (c) 2018 januslo6211@icloud.com
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# react-native-bluetooch-escpos-printer
+
+React-Native plugin for the bluetooth ESC/POS & TSC printers.
+
+Any questions or bug please raise a issue.
+
+##Still under developement
+
+#May support Android /IOS
+
+[![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/januslo/react-native-bluetooth-escpos-printer/master/LICENSE) [![npm version](https://badge.fury.io/js/react-native-bluetooth-escpos-printer.svg)](https://www.npmjs.com/package/react-native-bluetooth-escpos-printer)
+
+## Installation
+### Step 1 ###
+Install via NPM [Check In NPM](https://www.npmjs.com/package/react-native-bluetooth-escpos-printer)
+```bash
+npm install react-native-bluetooth-escpos-printer --save
+```
+
+Or install via github
+```bash
+npm install https://github.com/januslo/react-native-bluetooth-escpos-printer.git --save
+```
+
+### Step2 ###
+Link the plugin to your RN project
+```bash
+react-native link react-native-bluetooth-escpos-printer
+```
+
+Or you may need to link manually.
+//TODO: manually link guilds.
+
+### Step3 ###
+Refers to your JS files
+```javascript
+    import {BluetoothManager,BluetoothEscposPrinter,BluetoothTscPrinter} from 'react-native-bluetooth-escpos-printer';
+```
+
+## Usage and APIs ##
+
+### BluetoothManager ###
+BluetoothManager is the module that for Bluetooth service management, supports Bluetooth status check, enable/disable Bluetooth service,scan devices,connect/unpaire devices.
+
+* isBluetoothEnabled ==>
+async function, check whether Bluetooth service is enabled.
+//TODO: consider to return the the devices information already bound and paired here..
+
+```javascript
+     BluetoothManager.isBluetoothEnabled().then((enabled)=> {
+                alert(enabled) // enabled ==> true /false
+            }, (err)=> {
+                alert(err)
+            });
+```
+
+* enableBluetooth ==> ``` diff + ANDROID ONLY ```
+async function, enable the bluetooth service, returns the devices information already bound and paired.  ``` diff - IOS would just resovle with nil ```
+
+```javascript
+BluetoothManager.enableBluetooth().then((r)=>{
+                var paired = [];
+                if(r && r.length>0){
+                    for(var i=0;i<r.length;i++){
+                        try{
+                            paired.push(JSON.parse(r[i])); // NEED TO PARSE THE DEVICE INFORMATION
+                        }catch(e){
+                            //ignore
+                        }
+                    }
+                }
+                console.log(JSON.stringify(paired))
+            },(err)=>{
+               alert(err)
+           });
+```
+
+* disableBluetooth ==>  ``` diff + ANDROID ONLY ```
+async function ,disable the bluetooth service. ``` diff - IOS would just resovle with nil ```
+
+```javascript
+BluetoothManager.disableBluetooth().then(()=>{
+            // do something.
+          },(err)=>{alert(err)});
+```
+
+* scanDevices ==>
+async function , scans the bluetooth devices, returns devices found and pared after scan finish. Event [BluetoothManager.EVENT_DEVICE_ALREADY_PAIRED] would be emitted with devices bound; event [BluetoothManager.EVENT_DEVICE_FOUND] would be emitted (many time) as long as new devices found.
+
+samples with events:
+```javascript
+ DeviceEventEmitter.addListener(
+            BluetoothManager.EVENT_DEVICE_ALREADY_PAIRED, (rsp)=> {
+                this._deviceAlreadPaired(rsp) // rsp.devices would returns the paired devices array in JSON string.
+            });
+        DeviceEventEmitter.addListener(
+            BluetoothManager.EVENT_DEVICE_FOUND, (rsp)=> {
+                this._deviceFoundEvent(rsp) // rsp.devices would returns the found device object in JSON string
+            });
+```
+
+samples with scanDevices function
+```javascript
+BluetoothManager.scanDevices()
+            .then((s)=> {
+                var ss = JSON.parse(s);//JSON string
+                this.setState({
+                    pairedDs: this.state.pairedDs.cloneWithRows(ss.paired || []),
+                    foundDs: this.state.foundDs.cloneWithRows(ss.found || []),
+                    loading: false
+                }, ()=> {
+                    this.paired = ss.paired || [];
+                    this.found = ss.found || [];
+                });
+            }, (er)=> {
+                this.setState({
+                    loading: false
+                })
+                alert('error' + JSON.stringify(er));
+            });
+```
+
+* connect ==>
+async function, connect the specified devices, if not bound, bound dailog promps.
+
+```javascript
+
+    BluetoothManager.connect(rowData.address) // the device address scanned.
+     .then((s)=>{
+       this.setState({
+        loading:false,
+        boundAddress:rowData.address
+    })
+    },(e)=>{
+       this.setState({
+         loading:false
+     })
+       alert(e);
+    })
+
+```
+
+* unpaire ==>
+async function, disconnect and unpaire the specified devices
+
+```javascript
+     BluetoothManager.connect(rowData.address)
+     .then((s)=>{
+        //success here
+     },
+     (err)=>{
+        //error here
+     })
+```
+
+* Events of BluetoothManager module
+
+| Name/KEY | DESCRIPTION |
+|---|---|
+| EVENT_DEVICE_ALREADY_PAIRED | Emits the devices array already paired |
+| EVENT_DEVICE_DISCOVER_DONE | Emits when the scan done |
+| EVENT_DEVICE_FOUND | Emits when device found during scan |
+| EVENT_CONNECTION_LOST | Emits when device connection lost |
+| EVENT_UNABLE_CONNECT | Emits when error occurs while trying to connect device |
+| EVENT_CONNECTED | Emits when device connected |
+| EVENT_BLUETOOTH_NOT_SUPPORT | Emits when device not support bluetooth(android only) |
+
+### BluetoothTscPrinter ###
+The printer for label printing.
+
+* printLabel ==>
+async function the perform label print action.
+
+```javascript
+BluetoothTscPrinter.printLable(options)
+.then(()=>{
+    //success
+},
+(err)=>{
+    //error
+})
+
+```
+
+#### Options of printLabel( ) function: (JSON object) ####
+
+##### width #####
+    label with , the real size of the label, matured by mm usualy.
+##### height #####
+    label height, the real size of the label, matured by mm usualy.
+##### direction #####
+    the printing direction, constants of BluetoothTscPrinter.DIRECTION, values BluetoothTscPrinter.DIRECTION.FORWARD/BluetoothTscPrinter.DIRECTION.BACKWARD (0/1)
+##### gap #####
+    the gap between 2 labels, matured by mm usualy.
+##### reference #####
+    the "zero" position of the label, values [x,y], default [0,0]
+##### tear #####
+    switch of the paper cut, constants of BluetoothTscPrinter.TEAR, values ON/OFF (string 'ON','OFF')
+##### sound #####
+    switch of the bee sound, values 0/1
+##### text #####
+    the collection of texts to print, contains following fields as the configuration:
+        * text
+            the text string,
+        * x
+            the text print start position-x
+        * y
+            the text print start position-y
+        * fonttype
+            the font type of the text, constanst of BluetoothTscPrinter.FONTTYPE,refereces as table:
+                | CONSTANTS | VALUE   |
+                |---|---|
+                |FONT_1| "1"|
+                |FONT_2| "2"|
+                |FONT_3| "3"|
+                |FONT_4| "4"|
+                |FONT_5| "5"|
+                |FONT_6| "6"|
+                |FONT_7| "7"|
+                |FONT_8|"8"|
+                |SIMPLIFIED_CHINESE| "TSS24.BF2"|
+                |TRADITIONAL_CHINESE| "TST24.BF2"|
+                |KOREAN| "K"|
+        * rotation
+            the rotation of the text, constants of the BluetoothTscPrinter.ROTATION, referces as table:
+                   | CONSTANTS | VALUE   |
+                   |---|---|
+                   |ROTATION_0| 0|
+                   |ROTATION_90| 90|
+                   |ROTATION_180| 180|
+                   |ROTATION_270| 270|
+        * xscal
+            the scal in x,
+        * yscal
+            the scal in y, xscal/yscal is the constants of the BluetoothTscPrinter.FONTMUL, referces as table:
+             | CONSTANTS | VALUE   |
+             |---|---|
+             |MUL_1| 1|
+             |MUL_2| 2|
+             |MUL_3| 3|
+             |MUL_4| 4|
+             |MUL_5| 5|
+             |MUL_6| 6|
+             |MUL_7| 7|
+             |MUL_8| 8|
+             |MUL_9| 9|
+             |MUL_10: 10|
+
+##### qrcode #####
+    the collection of qrcodes to print, contains following fields as the configuration:
+        * code
+            the qrcode content string.
+        * x
+            the print start position at x
+        * y
+            the print start position at y
+        * level
+            the error correction level, constants of BluetoothTscPrinter.EEC, referces as tables:
+            | CONSTANTS | VALUE   |
+            |---|---|
+            |LEVEL_L|"L"|
+            |LEVEL_M| "M"|
+            |LEVEL_Q| "Q"|
+            |LEVEL_H| "H"|
+        * width
+            the qrcode size (width X width),since the qrcode are squre normally, so we just config the width.
+
+        * rotation
+            rationtion. the same as text object.
+
+##### barcode #####
+    the collection of barcode to print, contains foloowing fields as configuration
+      * x
+        the print start position of x,
+      * y
+        the print start position of y,
+      * type
+        the barcode type, constants of BluetoothTscPrinter, definition as table:
+        | CONSTRANTS | VALUE |
+        |---|---|
+        | CODE128 | "128" |
+        | CODE128M | "128M" |
+        | EAN128 | "EAN128" |
+        | ITF25 | "25" |
+        | ITF25C | "25C" |
+        | CODE39 | "39" |
+        | CODE39C | "39C" |
+        | CODE39S | "39S" |
+        | CODE93 | "93" |
+        | EAN13 | "EAN13" |
+        | EAN13_2 | "EAN13+2" |
+        | EAN13_5 | "EAN13+5" |
+        | EAN8 | "EAN8" |
+        | EAN8_2 | "EAN8+2" |
+        | EAN8_5 | "EAN8+5" |
+        | CODABAR | "CODA" |
+        | POST | "POST" |
+        | UPCA | "EAN13" |
+        | UPCA_2 | "EAN13+2" |
+        | UPCA_5 | "EAN13+5" |
+        | UPCE | "EAN13" |
+        | UPCE_2 | "EAN13+2" |
+        | UPCE_5 | "EAN13+5" |
+        | CPOST | "CPOST" |
+        | MSI | "MSI" |
+        | MSIC | "MSIC" |
+        | PLESSEY | "PLESSEY" |
+        | ITF14 | "ITF14" |
+        | EAN14 | "EAN14" |
+
+     * height
+      the height of the barcode.
+     * readable
+      the hunman readable factor, 0-not readable, 1-readable.
+     * rotation
+      rotation, the same as text.
+     * code
+      the code to generate and print, should follow the restriction of the code type using.
+     * wide
+     the wide bar lines width (dot)
+     * narrow
+     the narrow bar line widht (dot)
+
+##### image #####
+    the collection of the image to print.
+     * x
+     the print start position x.
+     * y
+     the print start position y.
+     * mode
+     the bitmap mode of print, constants of BluetoothTscPrinter.BITMAP_MODE, valuse OVERWRITE(0),OR(1),XOR(2).
+     * width
+     the width of the image to print. (height will be calculated by image ratio)
+     * image
+     the base64 encoded image data(without schema)
+
+#### demo of printLabel() options ####
+```javascript
+let options = {
+   width: 40,
+   height: 30,
+   gap: 20,
+   direction: BluetoothTscPrinter.DIRECTION.FORWARD,
+   reference: [0, 0],
+   tear: BluetoothTscPrinter.TEAR.ON,
+   sound: 0,
+   text: [{
+       text: 'I am a testing txt',
+       x: 20,
+       y: 0,
+       fonttype: BluetoothTscPrinter.FONTTYPE.SIMPLIFIED_CHINESE,
+       rotation: BluetoothTscPrinter.ROTATION.ROTATION_0,
+       xscal:BluetoothTscPrinter.FONTMUL.MUL_1,
+       yscal: BluetoothTscPrinter.FONTMUL.MUL_1
+   },{
+       text: '你在说什么呢?',
+       x: 20,
+       y: 50,
+       fonttype: BluetoothTscPrinter.FONTTYPE.SIMPLIFIED_CHINESE,
+       rotation: BluetoothTscPrinter.ROTATION.ROTATION_0,
+       xscal:BluetoothTscPrinter.FONTMUL.MUL_1,
+       yscal: BluetoothTscPrinter.FONTMUL.MUL_1
+   }],
+   qrcode: [{x: 20, y: 96, level: BluetoothTscPrinter.EEC.LEVEL_L, width: 3, rotation: BluetoothTscPrinter.ROTATION.ROTATION_0, code: 'show me the money'}],
+   barcode: [{x: 120, y:96, type: BluetoothTscPrinter.BARCODETYPE.CODE128, height: 40, readable: 1, rotation: BluetoothTscPrinter.ROTATION.ROTATION_0, code: '1234567890'}],
+   image: [{x: 160, y: 160, mode: BluetoothTscPrinter.BITMAP_MODE.OVERWRITE,width: 60,image: base64Image}]
+}
+```
+### BluetoothEscposPrinter ###
+  the printer for receipt printing, following ESC/POS command.
+
+#### printerInit() ####
+  init the printer.
+
+#### printAndFeed(int feed) ####
+  printer the buffer data and feed (feed lines).
+
+#### printerLeftSpace(int sp) ####
+  set the printer left spaces.
+
+#### printerLineSpace(int sp) ####
+  set the spaces between lines.
+
+#### printerUnderLine(int line) ####
+  set the under line of the text, @param line --  0-off,1-on,2-deeper
+
+#### printerAlign(int align) ####
+  set the printer alignment, constansts: BluetoothEscposPrinter.ALIGN.LEFT/BluetoothEscposPrinter.ALIGN.CENTER/BluetoothEscposPrinter.ALIGN.RIGHT.
+  Not works ant printPic() method.
+
+#### printText(String text, ReadableMap options) ####
+  print text, options as following:
+  * encoding => text encoding,default GBK.
+  * codepage => codepage using, default 0.
+  * widthtimes => text font mul times in width, default 0.
+  * heigthTimes => text font mul times in height, default 0.
+  * fonttype => text font type, default 0.
+
+#### printColumn(ReadableArray columnWidths,ReadableArray columnAligns,ReadableArray columnTexts,ReadableMap options) ####
+  print texts in column, Parameters as following:
+  * columnWidths => int arrays, configs the width of each column, calculate by english character length. ex:the width of "abcdef" is 5 ,the width of "中文" is 4.
+  * columnAligns => arrays, alignment of each column, values is the same of printerAlign().
+  * columnTexts => arrays, the texts of each colunm to print.
+  * options => text print config options, the same of printText() options.
+
+#### setWidth(int width) ####
+  sets the widht of the printer.
+
+#### printPic(String base64encodeStr,ReadableMap options) ####
+  prints the image which encoded by base64, without schema.
+  * options: contains the params that may use in printing pic: "with":the pic with,basic on devices width(dots,58mm-384); "left":the left padding of the pic,for the printing position adjustment.
+
+#### setfTest() ####
+  prints the selft test.
+
+#### rotate() ####
+  set the rotate of the line.
+
+#### setBlob(int weight) ####
+  set blob of the line.
+
+#### printQRCode(String content, int size, int correctionLevel) ####
+  prints the qrcode.
+
+#### printBarCode(String str,int nType, int nWidthX, int nHeight, int nHriFontType, int nHriFontPosition) ####
+  prints the barcode.
+
+### Demos of printing a receipt ###
+```javascript
+await BluetoothEscposPrinter.printerAlign(BluetoothEscposPrinter.ALIGN.CENTER);
+await BluetoothEscposPrinter.setBlob(0);
+await  BluetoothEscposPrinter.printText("广州俊烨\n\r",{
+  encoding:'GBK',
+  codepage:0,
+  widthtimes:3,
+  heigthtimes:3,
+  fonttype:1
+});
+await BluetoothEscposPrinter.setBlob(0);
+await  BluetoothEscposPrinter.printText("销售单\n\r",{
+  encoding:'GBK',
+  codepage:0,
+  widthtimes:0,
+  heigthtimes:0,
+  fonttype:1
+});
+await BluetoothEscposPrinter.printerAlign(BluetoothEscposPrinter.ALIGN.LEFT);
+await  BluetoothEscposPrinter.printText("客户：零售客户\n\r",{});
+await  BluetoothEscposPrinter.printText("单号：xsd201909210000001\n\r",{});
+await  BluetoothEscposPrinter.printText("日期："+(dateFormat(new Date(), "yyyy-mm-dd h:MM:ss"))+"\n\r",{});
+await  BluetoothEscposPrinter.printText("销售员：18664896621\n\r",{});
+await  BluetoothEscposPrinter.printText("--------------------------------\n\r",{});
+let columnWidths = [12,6,6,8];
+await BluetoothEscposPrinter.printColumn(columnWidths,
+  [BluetoothEscposPrinter.ALIGN.LEFT,BluetoothEscposPrinter.ALIGN.CENTER,BluetoothEscposPrinter.ALIGN.CENTER,BluetoothEscposPrinter.ALIGN.RIGHT],
+  ["商品",'数量','单价','金额'],{});
+await BluetoothEscposPrinter.printColumn(columnWidths,
+  [BluetoothEscposPrinter.ALIGN.LEFT,BluetoothEscposPrinter.ALIGN.LEFT,BluetoothEscposPrinter.ALIGN.CENTER,BluetoothEscposPrinter.ALIGN.RIGHT],
+  ["React-Native定制开发我是比较长的位置你稍微看看是不是这样?",'1','32000','32000'],{});
+    await  BluetoothEscposPrinter.printText("\n\r",{});
+  await BluetoothEscposPrinter.printColumn(columnWidths,
+  [BluetoothEscposPrinter.ALIGN.LEFT,BluetoothEscposPrinter.ALIGN.LEFT,BluetoothEscposPrinter.ALIGN.CENTER,BluetoothEscposPrinter.ALIGN.RIGHT],
+  ["React-Native定制开发我是比较长的位置你稍微看看是不是这样?",'1','32000','32000'],{});
+await  BluetoothEscposPrinter.printText("\n\r",{});
+await  BluetoothEscposPrinter.printText("--------------------------------\n\r",{});
+await BluetoothEscposPrinter.printColumn([12,8,12],
+  [BluetoothEscposPrinter.ALIGN.LEFT,BluetoothEscposPrinter.ALIGN.LEFT,BluetoothEscposPrinter.ALIGN.RIGHT],
+  ["合计",'2','64000'],{});
+await  BluetoothEscposPrinter.printText("\n\r",{});
+await  BluetoothEscposPrinter.printText("折扣率：100%\n\r",{});
+await  BluetoothEscposPrinter.printText("折扣后应收：64000.00\n\r",{});
+await  BluetoothEscposPrinter.printText("会员卡支付：0.00\n\r",{});
+await  BluetoothEscposPrinter.printText("积分抵扣：0.00\n\r",{});
+await  BluetoothEscposPrinter.printText("支付金额：64000.00\n\r",{});
+await  BluetoothEscposPrinter.printText("结算账户：现金账户\n\r",{});
+await  BluetoothEscposPrinter.printText("备注：无\n\r",{});
+await  BluetoothEscposPrinter.printText("快递单号：无\n\r",{});
+await  BluetoothEscposPrinter.printText("打印时间："+(dateFormat(new Date(), "yyyy-mm-dd h:MM:ss"))+"\n\r",{});
+await  BluetoothEscposPrinter.printText("--------------------------------\n\r",{});
+await  BluetoothEscposPrinter.printText("电话：\n\r",{});
+await  BluetoothEscposPrinter.printText("地址:\n\r\n\r",{});
+await BluetoothEscposPrinter.printerAlign(BluetoothEscposPrinter.ALIGN.CENTER);
+await  BluetoothEscposPrinter.printText("欢迎下次光临\n\r\n\r\n\r",{});
+await BluetoothEscposPrinter.printerAlign(BluetoothEscposPrinter.ALIGN.LEFT);
+```

android/build.gradle

@@ -0,0 +1,60 @@
+buildscript {
+    repositories {
+        jcenter { url "http://jcenter.bintray.com/" }
+        maven {url "http://repo.spring.io/plugins-release/"}
+        mavenCentral()
+        maven {
+            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
+            url "$rootDir/../node_modules/react-native/android"
+        }
+        maven {
+            url 'https://maven.google.com'
+        }
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.1.4'
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 27
+    buildToolsVersion "27.0.3"
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion 24
+        versionCode 1
+        versionName "1.0"
+    }
+    lintOptions {
+        abortOnError false
+    }
+    sourceSets {
+        main {
+            aidl.srcDirs = ['src/main/java']
+        }
+    }
+}
+
+repositories {
+    jcenter { url "http://jcenter.bintray.com/" }
+    maven {url "http://repo.spring.io/plugins-release/"}
+    mavenCentral()
+    maven {
+        // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
+        url "$rootDir/../node_modules/react-native/android"
+    }
+    maven {
+        url 'https://maven.google.com'
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.facebook.react:react-native:+'  // From node_modules
+    implementation group: 'com.android.support', name: 'support-v4', version: '27.0.0'
+    implementation "com.google.zxing:core:3.3.0"
+}

android/build/generated/source/buildConfig/debug/cn/jystudio/bluetooth/BuildConfig.java

@@ -0,0 +1,13 @@
+/**
+ * Automatically generated file. DO NOT MODIFY
+ */
+package cn.jystudio.bluetooth;
+
+public final class BuildConfig {
+  public static final boolean DEBUG = Boolean.parseBoolean("true");
+  public static final String APPLICATION_ID = "cn.jystudio.bluetooth";
+  public static final String BUILD_TYPE = "debug";
+  public static final String FLAVOR = "";
+  public static final int VERSION_CODE = 1;
+  public static final String VERSION_NAME = "1.0";
+}

android/build/intermediates/aapt_friendly_merged_manifests/debug/aapt/AndroidManifest.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="cn.jystudio.bluetooth"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <uses-sdk
+        android:minSdkVersion="16"
+        android:targetSdkVersion="24" />
+
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+
+</manifest>

android/build/intermediates/aapt_friendly_merged_manifests/debug/aapt/output.json

@@ -0,0 +1 @@
+[{"outputType":{"type":"AAPT_FRIENDLY_MERGED_MANIFESTS"},"apkData":{"type":"MAIN","splits":[],"versionCode":1,"versionName":"1.0","enabled":true,"outputFile":"react-native-bluetooth-escpos-printer-debug.aar","fullName":"debug","baseName":"debug"},"path":"AndroidManifest.xml","properties":{"packageId":"cn.jystudio.bluetooth","split":""}}]

android/build/intermediates/annotation_processor_list/debug/annotationProcessors.json

@@ -0,0 +1 @@
+{}

android/build/intermediates/incremental/mergeDebugJniLibFolders/merger.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merger version="3"><dataSet config="main" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/jniLibs"/></dataSet><dataSet config="debug" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/debug/jniLibs"/></dataSet></merger>

android/build/intermediates/incremental/mergeDebugShaders/merger.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merger version="3"><dataSet config="main" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/shaders"/></dataSet><dataSet config="debug" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/debug/shaders"/></dataSet></merger>

android/build/intermediates/incremental/packageDebugAssets/merger.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merger version="3"><dataSet config="main" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/assets"/><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/build/intermediates/shader_assets/debug/compileDebugShaders/out"/></dataSet><dataSet config="debug" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/debug/assets"/></dataSet></merger>

android/build/intermediates/incremental/packageDebugResources/compile-file-map.properties

@@ -0,0 +1 @@
+#Wed Jan 29 16:49:37 MYT 2020

android/build/intermediates/incremental/packageDebugResources/merger.xml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="utf-8"?>
+<merger version="3"><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="main$Generated" generated="true" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/res"/><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/build/generated/res/rs/debug"/><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/build/generated/res/resValues/debug"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="main" generated-set="main$Generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/res"/><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/build/generated/res/rs/debug"/><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/build/generated/res/resValues/debug"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="debug$Generated" generated="true" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/debug/res"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="debug" generated-set="debug$Generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/debug/res"/></dataSet><mergedItems/></merger>

android/build/intermediates/library_manifest/debug/AndroidManifest.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="cn.jystudio.bluetooth"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <uses-sdk
+        android:minSdkVersion="16"
+        android:targetSdkVersion="24" />
+
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+
+</manifest>

android/build/intermediates/merged_manifests/debug/output.json

@@ -0,0 +1 @@
+[{"outputType":{"type":"MERGED_MANIFESTS"},"apkData":{"type":"MAIN","splits":[],"versionCode":1,"versionName":"1.0","enabled":true,"outputFile":"react-native-bluetooth-escpos-printer-debug.aar","fullName":"debug","baseName":"debug"},"path":"../../library_manifest/debug/AndroidManifest.xml","properties":{"packageId":"cn.jystudio.bluetooth","split":""}}]

android/build/intermediates/transforms/mergeJavaRes/debug/__content__.json

@@ -0,0 +1 @@
+[{"name":"resources","index":0,"scopes":["PROJECT"],"types":["RESOURCES"],"format":"JAR","present":true}]

android/build/intermediates/transforms/mergeJniLibs/debug/__content__.json

@@ -0,0 +1 @@
+[{"name":"resources","index":0,"scopes":["PROJECT"],"types":["NATIVE_LIBS"],"format":"DIRECTORY","present":false}]

android/build/outputs/logs/manifest-merger-debug-report.txt

@@ -0,0 +1,53 @@
+-- Merging decision tree log ---
+manifest
+ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:1-9:12
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:1-9:12
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:1-9:12
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:1-9:12
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:1-9:12
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:1-9:12
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:1-9:12
+	package
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:3:11-42
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+	android:versionName
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:1-9:12
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+	android:versionCode
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:1-9:12
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+	xmlns:android
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:2:11-69
+uses-permission#android.permission.BLUETOOTH_ADMIN
+ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:4:5-74
+	android:name
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:4:22-71
+uses-permission#android.permission.BLUETOOTH
+ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:5:5-68
+	android:name
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:5:22-65
+uses-permission#android.permission.ACCESS_COARSE_LOCATION
+ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:6:5-80
+	android:name
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:6:22-78
+uses-permission#android.permission.ACCESS_FINE_LOCATION
+ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:7:5-78
+	android:name
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml:7:22-76
+uses-sdk
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml reason: use-sdk injection requested
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+	android:targetSdkVersion
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+	android:minSdkVersion
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+		ADDED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml
+		INJECTED from /Users/munirishak/Documents/gitea/pahang-fa/pahang-fe/node_modules/react-native-bluetooth-escpos-printer/android/src/main/AndroidManifest.xml

android/react-native-bluetooth-escpos-printer.iml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module external.linked.project.id=":react-native-bluetooth-escpos-printer" external.linked.project.path="$MODULE_DIR$" external.root.project.path="$MODULE_DIR$/../../../android" external.system.id="GRADLE" type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="android-gradle" name="Android-Gradle">
+      <configuration>
+        <option name="GRADLE_PROJECT_PATH" value=":react-native-bluetooth-escpos-printer" />
+      </configuration>
+    </facet>
+    <facet type="android" name="Android">
+      <configuration>
+        <option name="SELECTED_BUILD_VARIANT" value="debug" />
+        <option name="ASSEMBLE_TASK_NAME" value="assembleDebug" />
+        <option name="COMPILE_JAVA_TASK_NAME" value="compileDebugSources" />
+        <afterSyncTasks>
+          <task>generateDebugSources</task>
+        </afterSyncTasks>
+        <option name="ALLOW_USER_CONFIGURATION" value="false" />
+        <option name="MANIFEST_FILE_RELATIVE_PATH" value="/src/main/AndroidManifest.xml" />
+        <option name="RES_FOLDER_RELATIVE_PATH" value="/src/main/res" />
+        <option name="RES_FOLDERS_RELATIVE_PATH" value="file://$MODULE_DIR$/build/generated/res/resValues/debug" />
+        <option name="TEST_RES_FOLDERS_RELATIVE_PATH" value="" />
+        <option name="ASSETS_FOLDER_RELATIVE_PATH" value="/src/main/assets" />
+        <option name="PROJECT_TYPE" value="1" />
+      </configuration>
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_7">
+    <output url="file://$MODULE_DIR$/build/intermediates/javac/debug/compileDebugJavaWithJavac/classes" />
+    <output-test url="file://$MODULE_DIR$/build/intermediates/javac/debugUnitTest/compileDebugUnitTestJavaWithJavac/classes" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/apt/debug" isTestSource="false" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/aidl_source_output_dir/debug/compileDebugAidl/out" isTestSource="false" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/buildConfig/debug" isTestSource="false" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/renderscript_source_output_dir/debug/compileDebugRenderscript/out" isTestSource="false" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/rs/debug" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/resValues/debug" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/apt/androidTest/debug" isTestSource="true" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/aidl_source_output_dir/debugAndroidTest/compileDebugAndroidTestAidl/out" isTestSource="true" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/buildConfig/androidTest/debug" isTestSource="true" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/renderscript_source_output_dir/debugAndroidTest/compileDebugAndroidTestRenderscript/out" isTestSource="true" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/rs/androidTest/debug" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/res/resValues/androidTest/debug" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/build/generated/source/apt/test/debug" isTestSource="true" generated="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/debug/res" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/debug/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/debug/assets" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/debug/aidl" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/debug/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/debug/rs" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/debug/shaders" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/res" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/resources" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/assets" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/aidl" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/rs" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/testDebug/shaders" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTestDebug/res" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTestDebug/resources" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTestDebug/assets" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTestDebug/aidl" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTestDebug/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTestDebug/rs" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTestDebug/shaders" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/res" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/assets" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/rs" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/shaders" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/res" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/resources" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/assets" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/aidl" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/rs" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/shaders" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/res" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/resources" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/assets" type="java-test-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/aidl" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/rs" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src/androidTest/shaders" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/build/generated/not_namespaced_r_class_sources" />
+      <excludeFolder url="file://$MODULE_DIR$/build/generated/source/r" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/aapt_friendly_merged_manifests" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/annotation_processor_list" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/annotations_typedef_file" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/annotations_zip" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/check_manifest_result" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/compile_library_classes" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/compile_only_not_namespaced_r_class_jar" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/consumer_proguard_file" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/intermediate-jars" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/javac" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/library_and_local_jars_jni" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/library_assets" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/library_java_res" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/library_manifest" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/lint_publish_jar" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/merged_jni_libs" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/merged_manifests" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/merged_shaders" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/packaged-classes" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/packaged_res" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/public_res" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/res" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/runtime_library_classes" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/shader_assets" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/symbols" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/transforms" />
+      <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
+      <excludeFolder url="file://$MODULE_DIR$/build/tmp" />
+    </content>
+    <orderEntry type="jdk" jdkName="Android API 27 Platform" jdkType="Android SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Gradle: com.squareup.okhttp3:okhttp-urlconnection:3.12.1@jar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.react:react-native:0.61.5@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.drawerlayout:drawerlayout:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.documentfile:documentfile:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.localbroadcastmanager:localbroadcastmanager:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.squareup.okhttp3:okhttp:3.12.1@jar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.lifecycle:lifecycle-runtime:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.lifecycle:lifecycle-livedata-core:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.google.zxing:core:3.3.0@jar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.cursoradapter:cursoradapter:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.customview:customview:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.asynclayoutinflater:asynclayoutinflater:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.vectordrawable:vectordrawable:1.0.1@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.interpolator:interpolator:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.fragment:fragment:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: javax.inject:javax.inject:1@jar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.slidingpanelayout:slidingpanelayout:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.media:media:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.fresco:nativeimagefilters:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.soloader:soloader:0.6.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.fresco:fresco:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.coordinatorlayout:coordinatorlayout:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.google.code.findbugs:jsr305:3.0.2@jar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.legacy:legacy-support-v4:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.arch.core:core-runtime:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.fresco:imagepipeline-base:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.fresco:imagepipeline:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.swiperefreshlayout:swiperefreshlayout:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.viewpager:viewpager:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.legacy:legacy-support-core-ui:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.loader:loader:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.fresco:imagepipeline-okhttp3:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.appcompat:appcompat:1.0.2@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.fresco:drawee:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.lifecycle:lifecycle-livedata:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.vectordrawable:vectordrawable-animated:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.lifecycle:lifecycle-common:2.0.0@jar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.legacy:legacy-support-core-utils:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.print:print:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.versionedparcelable:versionedparcelable:1.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.lifecycle:lifecycle-viewmodel:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.fresco:fbcore:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.arch.core:core-common:2.0.0@jar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.annotation:annotation:1.0.0@jar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.infer.annotation:infer-annotation:0.11.2@jar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.core:core:1.0.1@aar" level="project" />
+    <orderEntry type="library" name="Gradle: com.squareup.okio:okio:1.15.0@jar" level="project" />
+    <orderEntry type="library" name="Gradle: com.facebook.fresco:nativeimagetranscoder:2.0.0@aar" level="project" />
+    <orderEntry type="library" name="Gradle: androidx.collection:collection:1.0.0@jar" level="project" />
+  </component>
+</module>

android/src/main/AndroidManifest.xml

@@ -0,0 +1,10 @@
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="cn.jystudio.bluetooth">
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
+
+</manifest>
+  

android/src/main/gen/cn/jystudio/bluetooth/BuildConfig.java

@@ -0,0 +1,8 @@
+/*___Generated_by_IDEA___*/
+
+package cn.jystudio.bluetooth;
+
+/* This stub is only used by the IDE. It is NOT the BuildConfig class actually packed into the APK */
+public final class BuildConfig {
+  public final static boolean DEBUG = Boolean.parseBoolean(null);
+}

android/src/main/gen/cn/jystudio/bluetooth/Manifest.java

@@ -0,0 +1,7 @@
+/*___Generated_by_IDEA___*/
+
+package cn.jystudio.bluetooth;
+
+/* This stub is only used by the IDE. It is NOT the Manifest class actually packed into the APK */
+public final class Manifest {
+}

android/src/main/gen/cn/jystudio/bluetooth/R.java

@@ -0,0 +1,7 @@
+/*___Generated_by_IDEA___*/
+
+package cn.jystudio.bluetooth;
+
+/* This stub is only used by the IDE. It is NOT the R class actually packed into the APK */
+public final class R {
+}

android/src/main/java/cn/jystudio/bluetooth/BluetoothService.java

@@ -0,0 +1,345 @@
+
+package cn.jystudio.bluetooth;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothServerSocket;
+import android.bluetooth.BluetoothSocket;
+import android.content.Context;
+import android.util.Log;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.*;
+import java.lang.reflect.Method;
+
+/**
+ * This class does all the work for setting up and managing Bluetooth
+ * connections with other devices.
+ */
+public class BluetoothService {
+    // Debugging
+    private static final String TAG = "BluetoothService";
+    private static final boolean DEBUG = true;
+
+
+    // Name for the SDP record when creating server socket
+    private static final String NAME = "BTPrinter";
+    //UUID must be this
+    // Unique UUID for this application
+    private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
+
+    // Member fields
+    private BluetoothAdapter mAdapter;
+
+    private ConnectedThread mConnectedThread;
+    private int mState;
+
+    // Constants that indicate the current connection state
+    public static final int STATE_NONE = 0;       // we're doing nothing
+   // public static final int STATE_LISTEN = 1;     // now listening for incoming connections //feathure removed.
+    public static final int STATE_CONNECTING = 2; // now initiating an outgoing connection
+    public static final int STATE_CONNECTED = 3;  // now connected to a remote device
+
+
+    public static final int MESSAGE_STATE_CHANGE = 4;
+    public static final int MESSAGE_READ = 5;
+    public static final int MESSAGE_WRITE = 6;
+    public static final int MESSAGE_DEVICE_NAME = 7;
+    public static final int MESSAGE_CONNECTION_LOST = 8;
+    public static final int MESSAGE_UNABLE_CONNECT = 9;
+
+    // Key names received from the BluetoothService Handler
+    public static final String DEVICE_NAME = "device_name";
+    public static final String DEVICE_ADDRESS = "device_address";
+    public static final String TOAST = "toast";
+
+    public static String ErrorMessage = "No_Error_Message";
+
+    private static List<BluetoothServiceStateObserver> observers = new ArrayList<BluetoothServiceStateObserver>();
+
+    /**
+     * Constructor. Prepares a new BTPrinter session.
+     *
+     * @param context The UI Activity Context
+     */
+    public BluetoothService(Context context) {
+        mAdapter = BluetoothAdapter.getDefaultAdapter();
+        mState = STATE_NONE;
+
+    }
+
+    public void addStateObserver(BluetoothServiceStateObserver observer) {
+        observers.add(observer);
+    }
+
+    public void removeStateObserver(BluetoothServiceStateObserver observer) {
+        observers.remove(observer);
+    }
+
+    /**
+     * Set the current state of the connection
+     *
+     * @param state An integer defining the current connection state
+     */
+    private synchronized void setState(int state, Map<String, Object> bundle) {
+        if (DEBUG) Log.d(TAG, "setState() " + getStateName(mState) + " -> " + getStateName(state));
+        mState = state;
+        infoObervers(state, bundle);
+    }
+    private String getStateName(int state){
+        String name="UNKNOW:" + state;
+        if(STATE_NONE == state){
+            name="STATE_NONE";
+        }else if(STATE_CONNECTED == state){
+            name="STATE_CONNECTED";
+        }else if(STATE_CONNECTING ==  state){
+            name="STATE_CONNECTING";
+        }
+        return name;
+    }
+
+    private synchronized void infoObervers(int code, Map<String, Object> bundle) {
+        for (BluetoothServiceStateObserver ob : observers) {
+            ob.onBluetoothServiceStateChanged(code, bundle);
+        }
+    }
+
+    /**
+     * Return the current connection state.
+     */
+    public synchronized int getState() {
+        return mState;
+    }
+
+
+    /**
+     * Start the ConnectThread to initiate a connection to a remote device.
+     *
+     * @param device The BluetoothDevice to connect
+     */
+    public synchronized void connect(BluetoothDevice device) {
+        if (DEBUG) Log.d(TAG, "connect to: " + device);
+        BluetoothDevice connectedDevice = null;
+        if(mConnectedThread!=null){
+            connectedDevice = mConnectedThread.bluetoothDevice();
+        }
+        if( mState==STATE_CONNECTED && connectedDevice!=null && connectedDevice.getAddress().equals(device.getAddress())){
+            // connected already
+            Map<String, Object> bundle = new HashMap<String, Object>();
+            bundle.put(DEVICE_NAME, device.getName());
+            bundle.put(DEVICE_ADDRESS,device.getAddress());
+            setState(STATE_CONNECTED, bundle);
+        }else {
+            // Cancel any thread currently running a connection
+            this.stop();
+            // Start the thread to manage the connection and perform transmissions
+            mConnectedThread = new ConnectedThread(device);
+            mConnectedThread.start();
+            setState(STATE_CONNECTING, null);
+        }
+    }
+
+    /**
+     * Stop all threads
+     */
+    public synchronized void stop() {
+        if (mConnectedThread != null) {
+            mConnectedThread.cancel();
+            mConnectedThread = null;
+        }
+    }
+
+    /**
+     * Write to the ConnectedThread in an unsynchronized manner
+     *
+     * @param out The bytes to write
+     * @see ConnectedThread#write(byte[])
+     */
+    public void write(byte[] out) {
+        // Create temporary object
+        ConnectedThread r;
+        // Synchronize a copy of the ConnectedThread
+        synchronized (this) {
+            if (mState != STATE_CONNECTED) return;
+            r = mConnectedThread;
+        }
+        r.write(out);
+    }
+
+    /**
+     * Indicate that the connection attempt failed.
+     */
+    private void connectionFailed() {
+        setState(STATE_NONE, null);
+        infoObervers(MESSAGE_UNABLE_CONNECT, null);
+    }
+
+    /**
+     * Indicate that the connection was lost and notify the UI Activity.
+     */
+    private void connectionLost() {
+        setState(STATE_NONE, null);
+        infoObervers(MESSAGE_CONNECTION_LOST, null);
+    }
+
+    /**
+     * This thread runs during a connection with a remote device.
+     * It handles all incoming and outgoing transmissions.
+     */
+    private class ConnectedThread extends Thread {
+        private final BluetoothDevice mmDevice;
+        private  BluetoothSocket mmSocket;
+        private  InputStream mmInStream;
+        private  OutputStream mmOutStream;
+
+        public ConnectedThread(BluetoothDevice device) {
+            mmDevice = device;
+        }
+
+        @Override
+        public void run() {
+            Log.i(TAG, "BEGIN mConnectThread");
+            setName("ConnectThread");
+            Map<String, Object> bundle = new HashMap<String, Object>();
+
+            // Always cancel discovery because it will slow down a connection
+            mAdapter.cancelDiscovery();
+
+            BluetoothSocket tmp = null;
+
+            // try to connect with socket inner method firstly.
+            for(int i=1;i<=3;i++) {
+                try {
+                    tmp = (BluetoothSocket) mmDevice.getClass().getMethod("createRfcommSocket", int.class).invoke(mmDevice, i);
+                } catch (Exception e) {
+                }
+                if(tmp!=null){
+                    mmSocket = tmp;
+                    break;
+                }
+            }
+
+            // try with given uuid
+            if(mmSocket == null) {
+                try {
+                    tmp = mmDevice.createRfcommSocketToServiceRecord(MY_UUID);
+                } catch (IOException e) {
+                    e.printStackTrace();
+                    Log.e(TAG, "create() failed", e);
+                }
+                if (tmp == null) {
+                    Log.e(TAG, "create() failed: Socket NULL.");
+                    connectionFailed();
+                    return;
+                }
+            }
+            mmSocket = tmp;
+
+            // Make a connection to the BluetoothSocket
+            try {
+                // This is a blocking call and will only return on a
+                // successful connection or an exception
+                mmSocket.connect();
+            } catch (Exception e) {
+                e.printStackTrace();
+                connectionFailed();
+                // Close the socket
+                try {
+                    mmSocket.close();
+                } catch (Exception e2) {
+                    Log.e(TAG, "unable to close() socket during connection failure", e2);
+                }
+                return;
+            }
+
+
+            Log.d(TAG, "create ConnectedThread");
+            InputStream tmpIn = null;
+            OutputStream tmpOut = null;
+
+            // Get the BluetoothSocket input and output streams
+            try {
+                tmpIn = mmSocket.getInputStream();
+                tmpOut = mmSocket.getOutputStream();
+            } catch (IOException e) {
+                Log.e(TAG, "temp sockets not created", e);
+            }
+
+            mmInStream = tmpIn;
+            mmOutStream = tmpOut;
+
+            bundle.put(DEVICE_NAME, mmDevice.getName());
+            bundle.put(DEVICE_ADDRESS,mmDevice.getAddress());
+            setState(STATE_CONNECTED, bundle);
+
+            Log.i(TAG, "Connected");
+            int bytes;
+
+            // Keep listening to the InputStream while connected
+            while (true) {
+                try {
+                    byte[] buffer = new byte[256];
+                    // Read from the InputStream
+                    bytes = mmInStream.read(buffer);
+                    if (bytes > 0) {
+                        // Send the obtained bytes to the UI Activity
+                        bundle = new HashMap<String, Object>();
+                        bundle.put("bytes", bytes);
+                        infoObervers(MESSAGE_READ, bundle);
+                    } else {
+                        Log.e(TAG, "disconnected");
+                        connectionLost();
+                        break;
+                    }
+                } catch (IOException e) {
+                    Log.e(TAG, "disconnected", e);
+                    connectionLost();
+                    break;
+                }
+            }
+            Log.i(TAG, "ConnectedThread End");
+        }
+
+        /**
+         * Write to the connected OutStream.
+         *
+         * @param buffer The bytes to write
+         */
+        public void write(byte[] buffer) {
+            try {
+                mmOutStream.write(buffer);
+                mmOutStream.flush();//清空缓存
+               /* if (buffer.length > 3000) //
+                {
+                  byte[] readata = new byte[1];
+                  SPPReadTimeout(readata, 1, 5000);
+                }*/
+                Log.i("BTPWRITE", new String(buffer, "GBK"));
+                Map<String, Object> bundle = new HashMap<String, Object>();
+                bundle.put("bytes", buffer);
+                infoObervers(MESSAGE_WRITE, bundle);
+            } catch (IOException e) {
+                Log.e(TAG, "Exception during write", e);
+            }
+        }
+
+        public BluetoothDevice bluetoothDevice(){
+            if(mmSocket!=null && mmSocket.isConnected()){
+                return mmSocket.getRemoteDevice();
+            }else{
+                return null;
+            }
+        }
+
+        public void cancel() {
+            try {
+                mmSocket.close();
+                connectionLost();
+            } catch (IOException e) {
+                Log.e(TAG, "close() of connect socket failed", e);
+            }
+        }
+    }
+}

android/src/main/java/cn/jystudio/bluetooth/BluetoothServiceStateObserver.java

@@ -0,0 +1,11 @@
+package cn.jystudio.bluetooth;
+
+import java.util.Map;
+
+
+/**
+ * Created by januslo on 2018/9/22.
+ */
+public interface BluetoothServiceStateObserver {
+    void onBluetoothServiceStateChanged(int state, Map<String,Object> boundle);
+}

android/src/main/java/cn/jystudio/bluetooth/RNBluetoothEscposPrinterPackage.java

@@ -0,0 +1,34 @@
+
+package cn.jystudio.bluetooth;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import cn.jystudio.bluetooth.escpos.RNBluetoothEscposPrinterModule;
+import cn.jystudio.bluetooth.tsc.RNBluetoothTscPrinterModule;
+import com.facebook.react.ReactPackage;
+import com.facebook.react.bridge.NativeModule;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.uimanager.ViewManager;
+import com.facebook.react.bridge.JavaScriptModule;
+
+public class RNBluetoothEscposPrinterPackage implements ReactPackage {
+    @Override
+    public List<NativeModule> createNativeModules(ReactApplicationContext reactContext) {
+        BluetoothService service = new BluetoothService(reactContext);
+        return Arrays.<NativeModule>asList(new RNBluetoothManagerModule(reactContext, service),
+                new RNBluetoothEscposPrinterModule(reactContext, service),
+                new RNBluetoothTscPrinterModule(reactContext, service));
+    }
+
+    // Deprecated from RN 0.47
+    public List<Class<? extends JavaScriptModule>> createJSModules() {
+        return Collections.emptyList();
+    }
+
+    @Override
+    public List<ViewManager> createViewManagers(ReactApplicationContext reactContext) {
+        return Collections.emptyList();
+    }
+}

android/src/main/java/cn/jystudio/bluetooth/RNBluetoothManagerModule.java

@@ -0,0 +1,442 @@
+package cn.jystudio.bluetooth;
+
+
+import android.app.Activity;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
+import android.util.Log;
+import android.widget.Toast;
+import com.facebook.react.bridge.*;
+import com.facebook.react.modules.core.DeviceEventManagerModule;
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+import javax.annotation.Nullable;
+import java.lang.reflect.Method;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * Created by januslo on 2018/9/22.
+ */
+public class RNBluetoothManagerModule extends ReactContextBaseJavaModule
+        implements ActivityEventListener, BluetoothServiceStateObserver {
+
+    private static final String TAG = "BluetoothManager";
+    private final ReactApplicationContext reactContext;
+    public static final String EVENT_DEVICE_ALREADY_PAIRED = "EVENT_DEVICE_ALREADY_PAIRED";
+    public static final String EVENT_DEVICE_FOUND = "EVENT_DEVICE_FOUND";
+    public static final String EVENT_DEVICE_DISCOVER_DONE = "EVENT_DEVICE_DISCOVER_DONE";
+    public static final String EVENT_CONNECTION_LOST = "EVENT_CONNECTION_LOST";
+    public static final String EVENT_UNABLE_CONNECT = "EVENT_UNABLE_CONNECT";
+    public static final String EVENT_CONNECTED = "EVENT_CONNECTED";
+    public static final String EVENT_BLUETOOTH_NOT_SUPPORT = "EVENT_BLUETOOTH_NOT_SUPPORT";
+
+
+    // Intent request codes
+    private static final int REQUEST_CONNECT_DEVICE = 1;
+    private static final int REQUEST_ENABLE_BT = 2;
+
+    public static final int MESSAGE_STATE_CHANGE = BluetoothService.MESSAGE_STATE_CHANGE;
+    public static final int MESSAGE_READ = BluetoothService.MESSAGE_READ;
+    public static final int MESSAGE_WRITE = BluetoothService.MESSAGE_WRITE;
+    public static final int MESSAGE_DEVICE_NAME = BluetoothService.MESSAGE_DEVICE_NAME;
+
+    public static final int MESSAGE_CONNECTION_LOST = BluetoothService.MESSAGE_CONNECTION_LOST;
+    public static final int MESSAGE_UNABLE_CONNECT = BluetoothService.MESSAGE_UNABLE_CONNECT;
+    public static final String DEVICE_NAME = BluetoothService.DEVICE_NAME;
+    public static final String TOAST = BluetoothService.TOAST;
+
+    // Return Intent extra
+    public static String EXTRA_DEVICE_ADDRESS = "device_address";
+
+    private static final Map<String, Promise> promiseMap = Collections.synchronizedMap(new HashMap<String, Promise>());
+    private static final String PROMISE_ENABLE_BT = "ENABLE_BT";
+    private static final String PROMISE_SCAN = "SCAN";
+    private static final String PROMISE_CONNECT = "CONNECT";
+
+    private JSONArray pairedDeivce = new JSONArray();
+    private JSONArray foundDevice = new JSONArray();
+    // Name of the connected device
+    private String mConnectedDeviceName = null;
+    // Local Bluetooth adapter
+    private BluetoothAdapter mBluetoothAdapter = null;
+    // Member object for the services
+    private BluetoothService mService = null;
+
+    public RNBluetoothManagerModule(ReactApplicationContext reactContext, BluetoothService bluetoothService) {
+        super(reactContext);
+        this.reactContext = reactContext;
+        this.reactContext.addActivityEventListener(this);
+        this.mService = bluetoothService;
+        this.mService.addStateObserver(this);
+        // Register for broadcasts when a device is discovered
+        IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
+        filter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
+        this.reactContext.registerReceiver(discoverReceiver, filter);
+    }
+
+    @Override
+    public
+    @Nullable
+    Map<String, Object> getConstants() {
+        Map<String, Object> constants = new HashMap<>();
+        constants.put(EVENT_DEVICE_ALREADY_PAIRED, EVENT_DEVICE_ALREADY_PAIRED);
+        constants.put(EVENT_DEVICE_DISCOVER_DONE, EVENT_DEVICE_DISCOVER_DONE);
+        constants.put(EVENT_DEVICE_FOUND, EVENT_DEVICE_FOUND);
+        constants.put(EVENT_CONNECTION_LOST, EVENT_CONNECTION_LOST);
+        constants.put(EVENT_UNABLE_CONNECT, EVENT_UNABLE_CONNECT);
+        constants.put(EVENT_CONNECTED, EVENT_CONNECTED);
+        constants.put(EVENT_BLUETOOTH_NOT_SUPPORT, EVENT_BLUETOOTH_NOT_SUPPORT);
+        constants.put(DEVICE_NAME, DEVICE_NAME);
+        constants.put(EVENT_BLUETOOTH_NOT_SUPPORT, EVENT_BLUETOOTH_NOT_SUPPORT);
+        return constants;
+    }
+
+    private BluetoothAdapter getBluetoothAdapter(){
+        if(mBluetoothAdapter == null){
+            // Get local Bluetooth adapter
+            mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
+        }
+        // If the adapter is null, then Bluetooth is not supported
+        if (mBluetoothAdapter == null) {
+            emitRNEvent(EVENT_BLUETOOTH_NOT_SUPPORT,  Arguments.createMap());
+        }
+
+        return mBluetoothAdapter;
+    }
+
+
+    @ReactMethod
+    public void enableBluetooth(final Promise promise) {
+        BluetoothAdapter adapter = this.getBluetoothAdapter();
+        if(adapter == null){
+            promise.reject(EVENT_BLUETOOTH_NOT_SUPPORT);
+        }else if (!adapter.isEnabled()) {
+            // If Bluetooth is not on, request that it be enabled.
+            // setupChat() will then be called during onActivityResult
+            Intent enableIntent = new Intent(
+                    BluetoothAdapter.ACTION_REQUEST_ENABLE);
+            promiseMap.put(PROMISE_ENABLE_BT, promise);
+            this.reactContext.startActivityForResult(enableIntent, REQUEST_ENABLE_BT, Bundle.EMPTY);
+        } else {
+            WritableArray pairedDeivce =Arguments.createArray();
+            Set<BluetoothDevice> boundDevices = adapter.getBondedDevices();
+            for (BluetoothDevice d : boundDevices) {
+                try {
+                    JSONObject obj = new JSONObject();
+                    obj.put("name", d.getName());
+                    obj.put("address", d.getAddress());
+                    pairedDeivce.pushString(obj.toString());
+                } catch (Exception e) {
+                    //ignore.
+                }
+            }Log.d(TAG,"ble Enabled");
+            promise.resolve(pairedDeivce);
+        }
+    }
+
+    @ReactMethod
+    public void disableBluetooth(final Promise promise) {
+        BluetoothAdapter adapter = this.getBluetoothAdapter();
+        if(adapter == null){
+            promise.resolve(true);
+        }else {
+            if (mService != null && mService.getState() != BluetoothService.STATE_NONE) {
+                mService.stop();
+            }
+            promise.resolve(!adapter.isEnabled() || adapter.disable());
+        }
+    }
+
+    @ReactMethod
+    public void isBluetoothEnabled(final Promise promise) {
+        BluetoothAdapter adapter = this.getBluetoothAdapter();
+        promise.resolve(adapter!=null && adapter.isEnabled());
+    }
+
+    @ReactMethod
+    public void scanDevices(final Promise promise) {
+        BluetoothAdapter adapter = this.getBluetoothAdapter();
+        if(adapter == null){
+            promise.reject(EVENT_BLUETOOTH_NOT_SUPPORT);
+        }else {
+            cancelDisCovery();
+            int permissionChecked = ContextCompat.checkSelfPermission(reactContext, android.Manifest.permission.ACCESS_COARSE_LOCATION);
+            if (permissionChecked == PackageManager.PERMISSION_DENIED) {
+                // // TODO: 2018/9/21
+                ActivityCompat.requestPermissions(reactContext.getCurrentActivity(),
+                        new String[]{android.Manifest.permission.ACCESS_COARSE_LOCATION},
+                        1);
+            }
+
+
+            pairedDeivce = new JSONArray();
+            foundDevice = new JSONArray();
+            Set<BluetoothDevice> boundDevices = adapter.getBondedDevices();
+            for (BluetoothDevice d : boundDevices) {
+                try {
+                    JSONObject obj = new JSONObject();
+                    obj.put("name", d.getName());
+                    obj.put("address", d.getAddress());
+                    pairedDeivce.put(obj);
+                } catch (Exception e) {
+                    //ignore.
+                }
+            }
+
+            WritableMap params = Arguments.createMap();
+            params.putString("devices", pairedDeivce.toString());
+            emitRNEvent(EVENT_DEVICE_ALREADY_PAIRED, params);
+            if (!adapter.startDiscovery()) {
+                promise.reject("DISCOVER", "NOT_STARTED");
+                cancelDisCovery();
+            } else {
+                promiseMap.put(PROMISE_SCAN, promise);
+            }
+        }
+    }
+
+    @ReactMethod
+    public void connect(String address, final Promise promise) {
+        BluetoothAdapter adapter = this.getBluetoothAdapter();
+        if (adapter!=null && adapter.isEnabled()) {
+            BluetoothDevice device = adapter.getRemoteDevice(address);
+            promiseMap.put(PROMISE_CONNECT, promise);
+            mService.connect(device);
+        } else {
+            promise.reject("BT NOT ENABLED");
+        }
+
+    }
+
+    @ReactMethod
+    public void unpaire(String address,final Promise promise){
+        BluetoothAdapter adapter = this.getBluetoothAdapter();
+        if (adapter!=null && adapter.isEnabled()) {
+            BluetoothDevice device = adapter.getRemoteDevice(address);
+            this.unpairDevice(device);
+            promise.resolve(address);
+        } else {
+            promise.reject("BT NOT ENABLED");
+        }
+
+    }
+
+    private void unpairDevice(BluetoothDevice device) {
+        try {
+            Method m = device.getClass()
+                    .getMethod("removeBond", (Class[]) null);
+            m.invoke(device, (Object[]) null);
+        } catch (Exception e) {
+            Log.e(TAG, e.getMessage());
+        }
+    }
+
+    private void cancelDisCovery() {
+        try {
+            BluetoothAdapter adapter = this.getBluetoothAdapter();
+            if (adapter!=null && adapter.isDiscovering()) {
+                adapter.cancelDiscovery();
+            }
+            Log.d(TAG, "Discover canceled");
+        } catch (Exception e) {
+            //ignore
+        }
+    }
+
+
+    @Override
+    public void onActivityResult(Activity activity, int requestCode, int resultCode, Intent data) {
+        BluetoothAdapter adapter = this.getBluetoothAdapter();
+        Log.d(TAG, "onActivityResult " + resultCode);
+        switch (requestCode) {
+            case REQUEST_CONNECT_DEVICE: {
+                // When DeviceListActivity returns with a device to connect
+                if (resultCode == Activity.RESULT_OK) {
+                    // Get the device MAC address
+                    String address = data.getExtras().getString(
+                            EXTRA_DEVICE_ADDRESS);
+                    // Get the BLuetoothDevice object
+                    if (adapter!=null && BluetoothAdapter.checkBluetoothAddress(address)) {
+                        BluetoothDevice device = adapter
+                                .getRemoteDevice(address);
+                        // Attempt to connect to the device
+                        mService.connect(device);
+                    }
+                }
+                break;
+            }
+            case REQUEST_ENABLE_BT: {
+                Promise promise = promiseMap.remove(PROMISE_ENABLE_BT);
+                // When the request to enable Bluetooth returns
+                if (resultCode == Activity.RESULT_OK && promise != null) {
+                    // Bluetooth is now enabled, so set up a session
+                    if(adapter!=null){
+                        WritableArray pairedDeivce =Arguments.createArray();
+                        Set<BluetoothDevice> boundDevices = adapter.getBondedDevices();
+                        for (BluetoothDevice d : boundDevices) {
+                            try {
+                                JSONObject obj = new JSONObject();
+                                obj.put("name", d.getName());
+                                obj.put("address", d.getAddress());
+                                pairedDeivce.pushString(obj.toString());
+                            } catch (Exception e) {
+                                //ignore.
+                            }
+                        }
+                        promise.resolve(pairedDeivce);
+                    }else{
+                        promise.resolve(null);
+                    }
+
+                } else {
+                    // User did not enable Bluetooth or an error occured
+                    Log.d(TAG, "BT not enabled");
+                    if (promise != null) {
+                        promise.reject("ERR", new Exception("BT NOT ENABLED"));
+                    }
+                }
+                break;
+            }
+        }
+    }
+
+    @Override
+    public void onNewIntent(Intent intent) {
+
+    }
+
+    @Override
+    public String getName() {
+        return "BluetoothManager";
+    }
+
+
+    private boolean objectFound(JSONObject obj) {
+        boolean found = false;
+        if (foundDevice.length() > 0) {
+            for (int i = 0; i < foundDevice.length(); i++) {
+                try {
+                    String objAddress = obj.optString("address", "objAddress");
+                    String dsAddress = ((JSONObject) foundDevice.get(i)).optString("address", "dsAddress");
+                    if (objAddress.equalsIgnoreCase(dsAddress)) {
+                        found = true;
+                        break;
+                    }
+                } catch (Exception e) {
+                }
+            }
+        }
+        return found;
+    }
+
+    // The BroadcastReceiver that listens for discovered devices and
+    // changes the title when discovery is finished
+    private final BroadcastReceiver discoverReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String action = intent.getAction();
+            Log.d(TAG, "on receive:" + action);
+            // When discovery finds a device
+            if (BluetoothDevice.ACTION_FOUND.equals(action)) {
+                // Get the BluetoothDevice object from the Intent
+                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+                if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
+                    JSONObject deviceFound = new JSONObject();
+                    try {
+                        deviceFound.put("name", device.getName());
+                        deviceFound.put("address", device.getAddress());
+                    } catch (Exception e) {
+                        //ignore
+                    }
+                    if (!objectFound(deviceFound)) {
+                        foundDevice.put(deviceFound);
+                        WritableMap params = Arguments.createMap();
+                        params.putString("device", deviceFound.toString());
+                        reactContext.getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)
+                                .emit(EVENT_DEVICE_FOUND, params);
+                    }
+
+                }
+            } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
+                Promise promise = promiseMap.remove(PROMISE_SCAN);
+                if (promise != null) {
+
+                    JSONObject result = null;
+                    try {
+                        result = new JSONObject();
+                        result.put("paired", pairedDeivce);
+                        result.put("found", foundDevice);
+                        promise.resolve(result.toString());
+                    } catch (Exception e) {
+                        //ignore
+                    }
+                    WritableMap params = Arguments.createMap();
+                    params.putString("paired", pairedDeivce.toString());
+                    params.putString("found", foundDevice.toString());
+                    emitRNEvent(EVENT_DEVICE_DISCOVER_DONE, params);
+                }
+            }
+        }
+    };
+
+    private void emitRNEvent(String event, @Nullable WritableMap params) {
+        getReactApplicationContext().getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)
+                .emit(event, params);
+    }
+
+    @Override
+    public void onBluetoothServiceStateChanged(int state, Map<String, Object> bundle) {
+        Log.d(TAG,"on bluetoothServiceStatChange:"+state);
+        switch (state) {
+            case BluetoothService.STATE_CONNECTED:
+            case MESSAGE_DEVICE_NAME: {
+                // save the connected device's name
+                mConnectedDeviceName = (String) bundle.get(DEVICE_NAME);
+                Promise p = promiseMap.remove(PROMISE_CONNECT);
+                if (p == null) {   Log.d(TAG,"No Promise found.");
+                    WritableMap params = Arguments.createMap();
+                    params.putString(DEVICE_NAME, mConnectedDeviceName);
+                    emitRNEvent(EVENT_CONNECTED, params);
+                } else { Log.d(TAG,"Promise Resolve.");
+                    p.resolve(mConnectedDeviceName);
+                }
+
+                break;
+            }
+            case MESSAGE_CONNECTION_LOST: {
+                //Connection lost should not be the connect result.
+               // Promise p = promiseMap.remove(PROMISE_CONNECT);
+               // if (p == null) {
+                    emitRNEvent(EVENT_CONNECTION_LOST, null);
+               // } else {
+                 //   p.reject("Device connection was lost");
+                //}
+                break;
+            }
+            case MESSAGE_UNABLE_CONNECT: {     //无法连接设备
+                Promise p = promiseMap.remove(PROMISE_CONNECT);
+                if (p == null) {
+                    emitRNEvent(EVENT_UNABLE_CONNECT, null);
+                } else {
+                    p.reject("Unable to connect device");
+                }
+
+                break;
+            }
+            default:
+                break;
+        }
+    }
+}

android/src/main/java/cn/jystudio/bluetooth/escpos/RNBluetoothEscposPrinterModule.java

@@ -0,0 +1,492 @@
+
+package cn.jystudio.bluetooth.escpos;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.util.Base64;
+import android.util.Log;
+import cn.jystudio.bluetooth.BluetoothService;
+import cn.jystudio.bluetooth.BluetoothServiceStateObserver;
+import cn.jystudio.bluetooth.escpos.command.sdk.Command;
+import cn.jystudio.bluetooth.escpos.command.sdk.PrintPicture;
+import cn.jystudio.bluetooth.escpos.command.sdk.PrinterCommand;
+import com.facebook.react.bridge.*;
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.qrcode.QRCodeWriter;
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
+
+import javax.annotation.Nullable;
+import java.nio.charset.Charset;
+import java.util.*;
+
+public class RNBluetoothEscposPrinterModule extends ReactContextBaseJavaModule
+        implements BluetoothServiceStateObserver {
+    private static final String TAG = "BluetoothEscposPrinter";
+
+    public static final int WIDTH_58 = 384;
+    public static final int WIDTH_80 = 576;
+    private final ReactApplicationContext reactContext;
+    /******************************************************************************************************/
+
+    private int deviceWidth = WIDTH_58;
+    private BluetoothService mService;
+
+
+    public RNBluetoothEscposPrinterModule(ReactApplicationContext reactContext,
+                                          BluetoothService bluetoothService) {
+        super(reactContext);
+        this.reactContext = reactContext;
+        this.mService = bluetoothService;
+        this.mService.addStateObserver(this);
+    }
+
+    @Override
+    public String getName() {
+        return "BluetoothEscposPrinter";
+    }
+
+
+    @Override
+    public
+    @Nullable
+    Map<String, Object> getConstants() {
+        Map<String, Object> constants = new HashMap<>();
+        constants.put("width58", WIDTH_58);
+        constants.put("width80", WIDTH_80);
+        return constants;
+    }
+
+    @ReactMethod
+    public void printerInit(final Promise promise){
+        if(sendDataByte(PrinterCommand.POS_Set_PrtInit())){
+            promise.resolve(null);
+        }else{
+            promise.reject("COMMAND_NOT_SEND");
+        }
+    }
+
+    @ReactMethod
+    public void printAndFeed(int feed,final Promise promise){
+        if(sendDataByte(PrinterCommand.POS_Set_PrtAndFeedPaper(feed))){
+            promise.resolve(null);
+        }else{
+            promise.reject("COMMAND_NOT_SEND");
+        }
+    }
+
+    @ReactMethod
+    public void printerLeftSpace(int sp,final Promise promise){
+        if(sendDataByte(PrinterCommand.POS_Set_LeftSP(sp))){
+            promise.resolve(null);
+        }else{
+            promise.reject("COMMAND_NOT_SEND");
+        }
+    }
+
+    @ReactMethod
+    public void printerLineSpace(int sp,final Promise promise){
+        byte[] command = PrinterCommand.POS_Set_DefLineSpace();
+        if(sp>0){
+            command = PrinterCommand.POS_Set_LineSpace(sp);
+        }
+        if(command==null || !sendDataByte(command)){
+            promise.reject("COMMAND_NOT_SEND");
+        }else{
+            promise.resolve(null);
+        }
+    }
+
+    /**
+     * Under line switch, 0-off,1-on,2-deeper
+     * @param line 0-off,1-on,2-deeper
+     */
+    @ReactMethod
+    public void printerUnderLine(int line,final Promise promise){
+        if(sendDataByte(PrinterCommand.POS_Set_UnderLine(line))){
+            promise.resolve(null);
+        }else{
+            promise.reject("COMMAND_NOT_SEND");
+        }
+    }
+
+    /**
+     * When n=0 or 48, left justification is enabled
+     * When n=1 or 49, center justification is enabled
+     * When n=2 or 50, right justification is enabled
+     * @param align
+     * @param promise
+     */
+    @ReactMethod
+    public void printerAlign(int align,final Promise promise){
+        Log.d(TAG,"Align:"+align);
+        if(sendDataByte(PrinterCommand.POS_S_Align(align))){
+            promise.resolve(null);
+        }else{
+            promise.reject("COMMAND_NOT_SEND");
+        }
+    }
+
+
+    @ReactMethod
+    public void printText(String text, @Nullable  ReadableMap options, final Promise promise) {
+        try {
+            String encoding = "GBK";
+            int codepage = 0;
+            int widthTimes = 0;
+            int heigthTimes=0;
+            int fonttype=0;
+            if(options!=null) {
+                encoding = options.hasKey("encoding") ? options.getString("encoding") : "GBK";
+                codepage = options.hasKey("codepage") ? options.getInt("codepage") : 0;
+                widthTimes = options.hasKey("widthtimes") ? options.getInt("widthtimes") : 0;
+                heigthTimes = options.hasKey("heigthtimes") ? options.getInt("heigthtimes") : 0;
+                fonttype = options.hasKey("fonttype") ? options.getInt("fonttype") : 0;
+            }
+            String toPrint = text;
+//            if ("UTF-8".equalsIgnoreCase(encoding)) {
+//                byte[] b = text.getBytes("UTF-8");
+//                toPrint = new String(b, Charset.forName(encoding));
+//            }
+
+            byte[] bytes = PrinterCommand.POS_Print_Text(toPrint, encoding, codepage, widthTimes, heigthTimes, fonttype);
+            if (sendDataByte(bytes)) {
+                promise.resolve(null);
+            } else {
+                promise.reject("COMMAND_NOT_SEND");
+            }
+        }catch (Exception e){
+            promise.reject(e.getMessage(),e);
+        }
+    }
+
+    @ReactMethod
+    public void printColumn(ReadableArray columnWidths,ReadableArray columnAligns,ReadableArray columnTexts,
+                            @Nullable ReadableMap options,final Promise promise){
+        if(columnWidths.size()!=columnTexts.size() || columnWidths.size()!=columnAligns.size()){
+            promise.reject("COLUMN_WIDTHS_ALIGNS_AND_TEXTS_NOT_MATCH");
+            return;
+        }
+            int totalLen = 0;
+            for(int i=0;i<columnWidths.size();i++){
+                totalLen+=columnWidths.getInt(i);
+            }
+            int maxLen = deviceWidth/8;
+            if(totalLen>maxLen){
+                promise.reject("COLUNM_WIDTHS_TOO_LARGE");
+                return;
+            }
+
+        String encoding = "GBK";
+        int codepage = 0;
+        int widthTimes = 0;
+        int heigthTimes = 0;
+        int fonttype = 0;
+        if (options != null) {
+            encoding = options.hasKey("encoding") ? options.getString("encoding") : "GBK";
+            codepage = options.hasKey("codepage") ? options.getInt("codepage") : 0;
+            widthTimes = options.hasKey("widthtimes") ? options.getInt("widthtimes") : 0;
+            heigthTimes = options.hasKey("heigthtimes") ? options.getInt("heigthtimes") : 0;
+            fonttype = options.hasKey("fonttype") ? options.getInt("fonttype") : 0;
+        }
+        Log.d(TAG,"encoding: "+encoding);
+
+        /**
+         * [column1-1,
+         * column1-2,
+         * column1-3 ... column1-n]
+         * ,
+         *  [column2-1,
+         * column2-2,
+         * column2-3 ... column2-n]
+         *
+         * ...
+         *
+         */
+        List<List<String>> table = new ArrayList<List<String>>();
+
+        /**splits the column text to few rows and applies the alignment **/
+        int padding = 1;
+        for(int i=0;i<columnWidths.size();i++){
+            int width =columnWidths.getInt(i)-padding;//1 char padding
+            String text = String.copyValueOf(columnTexts.getString(i).toCharArray());
+            List<ColumnSplitedString> splited = new ArrayList<ColumnSplitedString>();
+            int shorter = 0;
+            int counter = 0;
+            String temp = "";
+            for(int c=0;c<text.length();c++){
+                char ch = text.charAt(c);
+                int l = isChinese(ch)?2:1;
+                if (l==2){
+                    shorter++;
+                }
+                temp=temp+ch;
+
+                if(counter+l<width){
+                   counter = counter+l;
+                }else{
+                    splited.add(new ColumnSplitedString(shorter,temp));
+                    temp = "";
+                    counter=0;
+                    shorter=0;
+                }
+            }
+            if(temp.length()>0) {
+                splited.add(new ColumnSplitedString(shorter,temp));
+            }
+            int align = columnAligns.getInt(i);
+
+            List<String> formated = new ArrayList<String>();
+            for(ColumnSplitedString s: splited){
+                StringBuilder empty = new StringBuilder();
+                for(int w=0;w<(width+padding-s.getShorter());w++){
+                    empty.append(" ");
+                }
+                int startIdx = 0;
+                String ss = s.getStr();
+                if(align == 1 && ss.length()<(width-s.getShorter())){
+                    startIdx = (width-s.getShorter()-ss.length())/2;
+                    if(startIdx+ss.length()>width-s.getShorter()){
+                        startIdx--;
+                    }
+                    if(startIdx<0){
+                        startIdx=0;
+                    }
+                }else if(align==2 && ss.length()<(width-s.getShorter())){
+                    startIdx =width - s.getShorter()-ss.length();
+                }
+                Log.d(TAG,"empty.replace("+startIdx+","+(startIdx+ss.length())+","+ss+")");
+                empty.replace(startIdx,startIdx+ss.length(),ss);
+                formated.add(empty.toString());
+            }
+            table.add(formated);
+
+        }
+
+        /**  try to find the max row count of the table **/
+        int maxRowCount = 0;
+        for(int i=0;i<table.size()/*column count*/;i++){
+            List<String> rows = table.get(i); // row data in current column
+            if(rows.size()>maxRowCount){maxRowCount = rows.size();}// try to find the max row count;
+        }
+
+        /** loop table again to fill the rows **/
+        StringBuilder[] rowsToPrint = new StringBuilder[maxRowCount];
+        for(int column=0;column<table.size()/*column count*/;column++){
+            List<String> rows = table.get(column); // row data in current column
+            for(int row=0;row<maxRowCount;row++){
+                if(rowsToPrint[row]==null){
+                    rowsToPrint[row] = new StringBuilder();
+                }
+                if(row<rows.size()){
+                    //got the row of this column
+                    rowsToPrint[row].append(rows.get(row));
+                }else{
+                    int w =columnWidths.getInt(column);
+                    StringBuilder empty = new StringBuilder();
+                   for(int i=0;i<w;i++){
+                       empty.append(" ");
+                   }
+                    rowsToPrint[row].append(empty.toString());//Append spaces to ensure the format
+                }
+            }
+        }
+
+        /** loops the rows and print **/
+        for(int i=0;i<rowsToPrint.length;i++){
+            rowsToPrint[i].append("\n\r");//wrap line..
+            try {
+//                byte[] toPrint = rowsToPrint[i].toString().getBytes("UTF-8");
+//                String text = new String(toPrint, Charset.forName(encoding));
+                if (!sendDataByte(PrinterCommand.POS_Print_Text(rowsToPrint[i].toString(), encoding, codepage, widthTimes, heigthTimes, fonttype))) {
+                    promise.reject("COMMAND_NOT_SEND");
+                    return;
+                }
+            }catch (Exception e){
+                e.printStackTrace();
+            }
+        }
+        promise.resolve(null);
+    }
+
+    @ReactMethod
+    public void setWidth(int width) {
+        deviceWidth = width;
+    }
+
+    @ReactMethod
+    public void printPic(String base64encodeStr, @Nullable  ReadableMap options) {
+        int width = 0;
+        int leftPadding = 0;
+        if(options!=null){
+            width = options.hasKey("width") ? options.getInt("width") : 0;
+            leftPadding = options.hasKey("left")?options.getInt("left") : 0;
+        }
+
+        //cannot larger then devicesWith;
+        if(width > deviceWidth || width == 0){
+            width = deviceWidth;
+        }
+
+        byte[] bytes = Base64.decode(base64encodeStr, Base64.DEFAULT);
+        Bitmap mBitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
+        int nMode = 0;
+        if (mBitmap != null) {
+            /**
+             * Parameters:
+             * mBitmap  要打印的图片
+             * nWidth   打印宽度（58和80）
+             * nMode    打印模式
+             * Returns: byte[]
+             */
+            byte[] data = PrintPicture.POS_PrintBMP(mBitmap, width, nMode, leftPadding);
+            //	SendDataByte(buffer);
+            sendDataByte(Command.ESC_Init);
+            sendDataByte(Command.LF);
+            sendDataByte(data);
+            // sendDataByte(PrinterCommand.POS_Set_PrtAndFeedPaper(30));
+            // sendDataByte(PrinterCommand.POS_Set_Cut(1));
+            sendDataByte(PrinterCommand.POS_Set_PrtInit());
+        }
+    }
+
+    @ReactMethod
+    public void cutPaper() {
+        sendDataByte(Command.ESC_Init);
+        sendDataByte(Command.LF);
+        sendDataByte(PrinterCommand.POS_Set_Cut(1));
+    }
+
+
+    @ReactMethod
+    public void selfTest(@Nullable Callback cb) {
+        boolean result = sendDataByte(PrinterCommand.POS_Set_PrtSelfTest());
+        if (cb != null) {
+            cb.invoke(result);
+        }
+    }
+
+    /**
+     * Rotate 90 degree, 0-no rotate, 1-rotate
+     * @param rotate  0-no rotate, 1-rotate
+     */
+    @ReactMethod
+    public void rotate(int rotate,final Promise promise) {
+        if(sendDataByte(PrinterCommand.POS_Set_Rotate(rotate))){
+            promise.resolve(null);
+        }else{
+            promise.reject("COMMAND_NOT_SEND");
+        }
+    }
+
+    @ReactMethod
+    public void setBlob(int weight,final Promise promise) {
+        if(sendDataByte(PrinterCommand.POS_Set_Bold(weight))){
+            promise.resolve(null);
+        }else{
+            promise.reject("COMMAND_NOT_SEND");
+        }
+    }
+
+    @ReactMethod
+    public void printQRCode(String content, int size, int correctionLevel, final Promise promise) {
+        try {
+            Log.i(TAG, "生成的文本：" + content);
+            // 把输入的文本转为二维码
+            Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
+            hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
+            hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.forBits(correctionLevel));
+            BitMatrix bitMatrix = new QRCodeWriter().encode(content,
+                    BarcodeFormat.QR_CODE, size, size, hints);
+
+            int width = bitMatrix.getWidth();
+            int height = bitMatrix.getHeight();
+
+            System.out.println("w:" + width + "h:"
+                    + height);
+
+            int[] pixels = new int[width * height];
+            for (int y = 0; y < height; y++) {
+                for (int x = 0; x < width; x++) {
+                    if (bitMatrix.get(x, y)) {
+                        pixels[y * width + x] = 0xff000000;
+                    } else {
+                        pixels[y * width + x] = 0xffffffff;
+                    }
+                }
+            }
+
+            Bitmap bitmap = Bitmap.createBitmap(width, height,
+                    Bitmap.Config.ARGB_8888);
+
+            bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
+
+            //TODO: may need a left padding to align center.
+            byte[] data = PrintPicture.POS_PrintBMP(bitmap, size, 0, 0);
+            if (sendDataByte(data)) {
+                promise.resolve(null);
+            } else {
+                promise.reject("COMMAND_NOT_SEND");
+            }
+        } catch (Exception e) {
+            promise.reject(e.getMessage(), e);
+        }
+    }
+
+    @ReactMethod
+    public void printBarCode(String str, int nType, int nWidthX, int nHeight,
+                             int nHriFontType, int nHriFontPosition) {
+        byte[] command = PrinterCommand.getBarCodeCommand(str, nType, nWidthX, nHeight, nHriFontType, nHriFontPosition);
+        sendDataByte(command);
+    }
+
+    private boolean sendDataByte(byte[] data) {
+        if (data==null || mService.getState() != BluetoothService.STATE_CONNECTED) {
+            return false;
+        }
+        mService.write(data);
+        return true;
+    }
+
+    // 根据Unicode编码完美的判断中文汉字和符号
+    private static boolean isChinese(char c) {
+        Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
+        if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
+                || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
+                || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
+                || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B
+                || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
+                || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS
+                || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION) {
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public void onBluetoothServiceStateChanged(int state, Map<String, Object> boundle) {
+
+    }
+
+    /****************************************************************************************************/
+
+    private static class ColumnSplitedString{
+        private int shorter;
+        private String str;
+
+        public ColumnSplitedString(int shorter, String str) {
+            this.shorter = shorter;
+            this.str = str;
+        }
+
+        public int getShorter() {
+            return shorter;
+        }
+
+        public String getStr() {
+            return str;
+        }
+    }
+
+}

android/src/main/java/cn/jystudio/bluetooth/escpos/command/sdk/Command.java

@@ -0,0 +1,154 @@
+package cn.jystudio.bluetooth.escpos.command.sdk;
+
+public class Command {
+
+	private static final byte ESC = 0x1B;
+	private static final byte FS = 0x1C;
+	private static final byte GS = 0x1D;
+	private static final byte US = 0x1F;
+	private static final byte DLE = 0x10;
+	private static final byte DC4 = 0x14;
+	private static final byte DC1 = 0x11;
+	private static final byte SP = 0x20;
+	private static final byte NL = 0x0A;
+	private static final byte FF = 0x0C;
+	public static final byte PIECE = (byte) 0xFF;
+	public static final byte NUL = (byte) 0x00;
+	
+	//打印机初始化
+	public static byte[] ESC_Init = new byte[] {ESC, '@' };
+	
+	/**
+	 * 打印命令
+	 */
+	//打印并换行
+	public static byte[] LF = new byte[] {NL};
+	
+	//打印并走纸
+	public static byte[] ESC_J = new byte[] {ESC, 'J', 0x00 };
+	public static byte[] ESC_d = new byte[] {ESC, 'd', 0x00 };
+	
+	//打印自检页
+	public static byte[] US_vt_eot = new byte[] {US, DC1, 0x04 };
+	
+	 //蜂鸣指令
+    public static byte[] ESC_B_m_n = new byte[] {ESC, 'B', 0x00, 0x00 };
+	
+    //切刀指令
+    public static byte[] GS_V_n = new byte[] {GS, 'V', 0x00 };
+    public static byte[] GS_V_m_n = new byte[] {GS, 'V', 'B', 0x00 };
+    public static byte[] GS_i = new byte[] {ESC, 'i' };
+    public static byte[] GS_m = new byte[] {ESC, 'm' };
+	
+	/**
+	 * 字符设置命令
+	 */
+	//设置字符右间距
+	public static byte[] ESC_SP = new byte[] {ESC, SP, 0x00 };
+	
+	//设置字符打印字体格式
+	public static byte[] ESC_ExclamationMark = new byte[] {ESC, '!', 0x00 };
+	
+	//设置字体倍高倍宽
+	public static byte[] GS_ExclamationMark = new byte[] {GS, '!', 0x00 };
+	
+	//设置反显打印
+	public static byte[] GS_B = new byte[] {GS, 'B', 0x00 };
+	
+	//取消/选择90度旋转打印
+	public static byte[] ESC_V = new byte[] {ESC, 'V', 0x00 };
+	
+	//选择字体字型(主要是ASCII码)
+	public static byte[] ESC_M = new byte[] {ESC, 'M', 0x00 };
+	
+	//选择/取消加粗指令
+	public static byte[] ESC_G = new byte[] {ESC, 'G', 0x00 };
+	public static byte[] ESC_E = new byte[] {ESC, 'E', 0x00 };
+	
+	//选择/取消倒置打印模式
+	public static byte[] ESC_LeftBrace = new byte[] {ESC, '{', 0x00 };
+	
+	//设置下划线点高度(字符)
+	public static byte[] ESC_Minus = new byte[] {ESC, 45, 0x00 };
+	
+	//字符模式
+	public static byte[] FS_dot = new byte[] {FS, 46 };
+	
+	//汉字模式
+	public static byte[] FS_and = new byte[] {FS, '&' };
+	
+	//设置汉字打印模式
+	public static byte[] FS_ExclamationMark = new byte[] {FS, '!', 0x00 };
+	
+	//设置下划线点高度(汉字)
+	public static byte[] FS_Minus = new byte[] {FS, 45, 0x00 };
+	
+	//设置汉字左右间距
+	public static byte[] FS_S = new byte[] {FS, 'S', 0x00, 0x00 };
+	
+	//选择字符代码页
+	public static byte[] ESC_t = new byte[] {ESC, 't', 0x00 };
+	
+	/**
+	 * 格式设置指令
+	 */
+	//设置默认行间距
+	public static byte[] ESC_Two = new byte[] {ESC, 50}; 
+	
+	//设置行间距
+	public static byte[] ESC_Three = new byte[] {ESC, 51, 0x00 };
+	
+	//设置对齐模式
+	public static byte[] ESC_Align = new byte[] {ESC, 'a', 0x00 };
+	
+	//设置左边距
+	public static byte[] GS_LeftSp = new byte[] {GS, 'L', 0x00 , 0x00 };
+	
+	//设置绝对打印位置
+	//将当前位置设置到距离行首（nL + nH x 256）处。
+	//如果设置位置在指定打印区域外，该命令被忽略
+	public static byte[] ESC_Absolute  = new byte[] {ESC, '$', 0x00, 0x00 };
+	
+	//设置相对打印位置
+	public static byte[] ESC_Relative = new byte[] {ESC, 92, 0x00, 0x00 };
+	
+	//设置打印区域宽度
+	public static byte[] GS_W = new byte[] {GS, 'W', 0x00, 0x00 };
+
+	/**
+	 * 状态指令
+	 */
+	//实时状态传送指令
+	public static byte[] DLE_eot = new byte[] {DLE, 0x04, 0x00 };
+	
+	//实时弹钱箱指令
+	public static byte[] DLE_DC4 = new byte[] {DLE, DC4, 0x00, 0x00, 0x00 };
+	
+	//标准弹钱箱指令
+	public static byte[] ESC_p = new byte[] {ESC, 'F', 0x00, 0x00, 0x00 };
+	
+	/**
+	 * 条码设置指令
+	 */
+	//选择HRI打印方式
+	public static byte[] GS_H = new byte[] {GS, 'H', 0x00 };
+	
+	//设置条码高度
+	public static byte[] GS_h = new byte[] {GS, 'h', (byte) 0xa2 };
+	
+	//设置条码宽度
+	public static byte[] GS_w = new byte[] {GS, 'w', 0x00 };
+	
+	//设置HRI字符字体字型
+	public static byte[] GS_f = new byte[] {GS, 'f', 0x00 };
+	
+	//条码左偏移指令
+	public static byte[] GS_x = new byte[] {GS, 'x', 0x00 };
+	
+	//打印条码指令
+	public static byte[] GS_k = new byte[] {GS, 'k', 'A', FF };
+
+	//二维码相关指令		
+    public static byte[] GS_k_m_v_r_nL_nH = new byte[] { ESC, 'Z', 0x03, 0x03, 0x08, 0x00, 0x00 };
+	
+}

android/src/main/java/cn/jystudio/bluetooth/escpos/command/sdk/PrintPicture.java

@@ -0,0 +1,281 @@
+package cn.jystudio.bluetooth.escpos.command.sdk;
+
+import android.graphics.*;
+
+import java.io.UnsupportedEncodingException;
+
+public class PrintPicture {
+    private static int[] p0 = new int[]{0, 128};
+    private static int[] p1 = new int[]{0, 64};
+    private static int[] p2 = new int[]{0, 32};
+    private static int[] p3 = new int[]{0, 16};
+    private static int[] p4 = new int[]{0, 8};
+    private static int[] p5 = new int[]{0, 4};
+    private static int[] p6 = new int[]{0, 2};
+    private static int[][] Floyd16x16 = new int[][]{{0, 128, 32, 160, 8, 136, 40, 168, 2, 130, 34, 162, 10, 138, 42, 170}, {192, 64, 224, 96, 200, 72, 232, 104, 194, 66, 226, 98, 202, 74, 234, 106}, {48, 176, 16, 144, 56, 184, 24, 152, 50, 178, 18, 146, 58, 186, 26, 154}, {240, 112, 208, 80, 248, 120, 216, 88, 242, 114, 210, 82, 250, 122, 218, 90}, {12, 140, 44, 172, 4, 132, 36, 164, 14, 142, 46, 174, 6, 134, 38, 166}, {204, 76, 236, 108, 196, 68, 228, 100, 206, 78, 238, 110, 198, 70, 230, 102}, {60, 188, 28, 156, 52, 180, 20, 148, 62, 190, 30, 158, 54, 182, 22, 150}, {252, 124, 220, 92, 244, 116, 212, 84, 254, 126, 222, 94, 246, 118, 214, 86}, {3, 131, 35, 163, 11, 139, 43, 171, 1, 129, 33, 161, 9, 137, 41, 169}, {195, 67, 227, 99, 203, 75, 235, 107, 193, 65, 225, 97, 201, 73, 233, 105}, {51, 179, 19, 147, 59, 187, 27, 155, 49, 177, 17, 145, 57, 185, 25, 153}, {243, 115, 211, 83, 251, 123, 219, 91, 241, 113, 209, 81, 249, 121, 217, 89}, {15, 143, 47, 175, 7, 135, 39, 167, 13, 141, 45, 173, 5, 133, 37, 165}, {207, 79, 239, 111, 199, 71, 231, 103, 205, 77, 237, 109, 197, 69, 229, 101}, {63, 191, 31, 159, 55, 183, 23, 151, 61, 189, 29, 157, 53, 181, 21, 149}, {254, 127, 223, 95, 247, 119, 215, 87, 253, 125, 221, 93, 245, 117, 213, 85}};
+
+
+    public static Bitmap resizeImage(Bitmap bitmap, int w, int h) {
+        int width = bitmap.getWidth();
+        int height = bitmap.getHeight();
+        float scaleWidth = (float) w / (float) width;
+        float scaleHeight = (float) h / (float) height;
+        Matrix matrix = new Matrix();
+        matrix.postScale(scaleWidth, scaleHeight);
+        Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
+        return resizedBitmap;
+    }
+
+    public static Bitmap pad(Bitmap Src, int padding_x, int padding_y) {
+        Bitmap outputimage = Bitmap.createBitmap(Src.getWidth() + padding_x,Src.getHeight() + padding_y, Bitmap.Config.ARGB_8888);
+        Canvas can = new Canvas(outputimage);
+        can.drawARGB(255,255,255,255); //This represents White color
+        can.drawBitmap(Src, padding_x, padding_y, null);
+        return outputimage;
+    }
+
+
+    /**
+     * 打印位图函数
+     * 此函数是将一行作为一个图片打印，这样处理不容易出错
+     *
+     * @param mBitmap
+     * @param nWidth
+     * @param nMode
+     * @return
+     */
+    public static byte[] POS_PrintBMP(Bitmap mBitmap, int nWidth, int nMode, int leftPadding) {
+        // 先转黑白，再调用函数缩放位图
+        int width = ((nWidth + 7) / 8) * 8;
+        int height = mBitmap.getHeight() * width / mBitmap.getWidth();
+        height = ((height + 7) / 8) * 8;
+        int left = leftPadding == 0 ? 0 : ((leftPadding+7) / 8) * 8;
+
+        Bitmap rszBitmap = mBitmap;
+        if (mBitmap.getWidth() != width) {
+            rszBitmap = Bitmap.createScaledBitmap(mBitmap, width, height, true);
+        }
+
+        Bitmap grayBitmap = toGrayscale(rszBitmap);
+        if(left>0){
+            grayBitmap = pad(grayBitmap,left,0);
+        }
+
+        byte[] dithered = thresholdToBWPic(grayBitmap);
+
+        byte[] data = eachLinePixToCmd(dithered, width+left, nMode);
+
+        return data;
+    }
+
+    /**
+     * 使用下传位图打印图片
+     * 先收完再打印
+     *
+     * @param bmp
+     * @return
+     */
+    public static byte[] Print_1D2A(Bitmap bmp) {
+
+			/*
+			 * 使用下传位图打印图片
+			 * 先收完再打印
+			 */
+        int width = bmp.getWidth();
+        int height = bmp.getHeight();
+        byte data[] = new byte[1024 * 10];
+        data[0] = 0x1D;
+        data[1] = 0x2A;
+        data[2] = (byte) ((width - 1) / 8 + 1);
+        data[3] = (byte) ((height - 1) / 8 + 1);
+        byte k = 0;
+        int position = 4;
+        int i;
+        int j;
+        byte temp = 0;
+        for (i = 0; i < width; i++) {
+            for (j = 0; j < height; j++) {
+                if (bmp.getPixel(i, j) != -1) {
+                    temp |= (0x80 >> k);
+                } // end if
+                k++;
+                if (k == 8) {
+                    data[position++] = temp;
+                    temp = 0;
+                    k = 0;
+                } // end if k
+            }// end for j
+            if (k % 8 != 0) {
+                data[position++] = temp;
+                temp = 0;
+                k = 0;
+            }
+
+        }
+
+        if (width % 8 != 0) {
+            i = height / 8;
+            if (height % 8 != 0) i++;
+            j = 8 - (width % 8);
+            for (k = 0; k < i * j; k++) {
+                data[position++] = 0;
+            }
+        }
+        return data;
+    }
+
+    public static Bitmap toGrayscale(Bitmap bmpOriginal) {
+        int width, height;
+        height = bmpOriginal.getHeight();
+        width = bmpOriginal.getWidth();
+
+        Bitmap bmpGrayscale = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
+        Canvas c = new Canvas(bmpGrayscale);
+        Paint paint = new Paint();
+        ColorMatrix cm = new ColorMatrix();
+        cm.setSaturation(0);
+        ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);
+        paint.setColorFilter(f);
+        c.drawBitmap(bmpOriginal, 0, 0, paint);
+        return bmpGrayscale;
+    }
+
+    public static byte[] thresholdToBWPic(Bitmap mBitmap) {
+        int[] pixels = new int[mBitmap.getWidth() * mBitmap.getHeight()];
+        byte[] data = new byte[mBitmap.getWidth() * mBitmap.getHeight()];
+        mBitmap.getPixels(pixels, 0, mBitmap.getWidth(), 0, 0, mBitmap.getWidth(), mBitmap.getHeight());
+        format_K_threshold(pixels, mBitmap.getWidth(), mBitmap.getHeight(), data);
+        return data;
+    }
+
+    private static void format_K_threshold(int[] orgpixels, int xsize, int ysize, byte[] despixels) {
+        int graytotal = 0;
+        boolean grayave = true;
+        int k = 0;
+
+        int i;
+        int j;
+        int gray;
+        for (i = 0; i < ysize; ++i) {
+            for (j = 0; j < xsize; ++j) {
+                gray = orgpixels[k] & 255;
+                graytotal += gray;
+                ++k;
+            }
+        }
+
+        int var10 = graytotal / ysize / xsize;
+        k = 0;
+
+        for (i = 0; i < ysize; ++i) {
+            for (j = 0; j < xsize; ++j) {
+                gray = orgpixels[k] & 255;
+                if (gray > var10) {
+                    despixels[k] = 0;
+                } else {
+                    despixels[k] = 1;
+                }
+
+                ++k;
+            }
+        }
+
+    }
+
+    public static byte[] eachLinePixToCmd(byte[] src, int nWidth, int nMode) {
+        int nHeight = src.length / nWidth;
+        int nBytesPerLine = nWidth / 8;
+        byte[] data = new byte[nHeight * (8 + nBytesPerLine)];
+        boolean offset = false;
+        int k = 0;
+
+        for (int i = 0; i < nHeight; ++i) {
+            int var10 = i * (8 + nBytesPerLine);
+            //GS v 0 m xL xH yL yH d1....dk 打印光栅位图
+            data[var10 + 0] = 29;//GS
+            data[var10 + 1] = 118;//v
+            data[var10 + 2] = 48;//0
+            data[var10 + 3] = (byte) (nMode & 1);
+            data[var10 + 4] = (byte) (nBytesPerLine % 256);//xL
+            data[var10 + 5] = (byte) (nBytesPerLine / 256);//xH
+            data[var10 + 6] = 1;//yL
+            data[var10 + 7] = 0;//yH
+
+            for (int j = 0; j < nBytesPerLine; ++j) {
+                data[var10 + 8 + j] = (byte) (p0[src[k]] + p1[src[k + 1]] + p2[src[k + 2]] + p3[src[k + 3]] + p4[src[k + 4]] + p5[src[k + 5]] + p6[src[k + 6]] + src[k + 7]);
+                k += 8;
+            }
+        }
+
+        return data;
+    }
+
+    public static byte[] pixToTscCmd(byte[] src) {
+        byte[] data = new byte[src.length / 8];
+        int k = 0;
+
+        for (int j = 0; k < data.length; ++k) {
+            byte temp = (byte) (p0[src[j]] + p1[src[j + 1]] + p2[src[j + 2]] + p3[src[j + 3]] + p4[src[j + 4]] + p5[src[j + 5]] + p6[src[j + 6]] + src[j + 7]);
+            data[k] = (byte) (~temp);
+            j += 8;
+        }
+
+        return data;
+    }
+    public static byte[] pixToEscRastBitImageCmd(byte[] src) {
+        byte[] data = new byte[src.length / 8];
+        int i = 0;
+
+        for (int k = 0; i < data.length; ++i) {
+            data[i] = (byte) (p0[src[k]] + p1[src[k + 1]] + p2[src[k + 2]] + p3[src[k + 3]] + p4[src[k + 4]] + p5[src[k + 5]] + p6[src[k + 6]] + src[k + 7]);
+            k += 8;
+        }
+
+        return data;
+    }
+    public static byte[] pixToEscNvBitImageCmd(byte[] src, int width, int height) {
+        byte[] data = new byte[src.length / 8 + 4];
+        data[0] = (byte) (width / 8 % 256);
+        data[1] = (byte) (width / 8 / 256);
+        data[2] = (byte) (height / 8 % 256);
+        data[3] = (byte) (height / 8 / 256);
+        boolean k = false;
+
+        for (int i = 0; i < width; ++i) {
+            int var7 = 0;
+
+            for (int j = 0; j < height / 8; ++j) {
+                data[4 + j + i * height / 8] = (byte) (p0[src[i + var7]] + p1[src[i + var7 + 1 * width]] + p2[src[i + var7 + 2 * width]] + p3[src[i + var7 + 3 * width]] + p4[src[i + var7 + 4 * width]] + p5[src[i + var7 + 5 * width]] + p6[src[i + var7 + 6 * width]] + src[i + var7 + 7 * width]);
+                var7 += 8 * width;
+            }
+        }
+
+        return data;
+    }
+    public static byte[] bitmapToBWPix(Bitmap mBitmap) {
+        int[] pixels = new int[mBitmap.getWidth() * mBitmap.getHeight()];
+        byte[] data = new byte[mBitmap.getWidth() * mBitmap.getHeight()];
+        Bitmap grayBitmap = toGrayscale(mBitmap);
+        grayBitmap.getPixels(pixels, 0, mBitmap.getWidth(), 0, 0, mBitmap.getWidth(), mBitmap.getHeight());
+        format_K_dither16x16(pixels, grayBitmap.getWidth(), grayBitmap.getHeight(), data);
+        return data;
+    }
+
+    private static void format_K_dither16x16(int[] orgpixels, int xsize, int ysize, byte[] despixels) {
+        int k = 0;
+
+        for (int y = 0; y < ysize; ++y) {
+            for (int x = 0; x < xsize; ++x) {
+                if ((orgpixels[k] & 255) > Floyd16x16[x & 15][y & 15]) {
+                    despixels[k] = 0;
+                } else {
+                    despixels[k] = 1;
+                }
+
+                ++k;
+            }
+        }
+
+    }
+
+}

android/src/main/java/cn/jystudio/bluetooth/escpos/command/sdk/PrinterCommand.java

@@ -0,0 +1,500 @@
+package cn.jystudio.bluetooth.escpos.command.sdk;
+
+import java.io.UnsupportedEncodingException;
+import java.util.Arrays;
+
+public class PrinterCommand {
+
+    /**
+     * 打印机初始化
+     *
+     * @return
+     */
+    public static byte[] POS_Set_PrtInit() {
+        return Command.ESC_Init;
+    }
+
+    /**
+     * 打印并换行
+     *
+     * @return
+     */
+    public static byte[] POS_Set_LF() {
+        return Command.LF;
+    }
+
+    /**
+     * 打印并走纸 (0~255)
+     *
+     * @param feed
+     * @return
+     */
+    public static byte[] POS_Set_PrtAndFeedPaper(int feed) {
+        if (feed > 255 | feed < 0) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_J, Command.ESC_J.length);
+        data[2] = (byte) feed;
+        return data;
+    }
+
+    /**
+     * 打印自检页
+     *
+     * @return
+     */
+    public static byte[] POS_Set_PrtSelfTest() {
+        return Command.US_vt_eot;
+    }
+
+    /**
+     * 蜂鸣指令
+     *
+     * @param m 蜂鸣次数
+     * @param t 每次蜂鸣的时间
+     * @return
+     */
+    public static byte[] POS_Set_Beep(int m, int t) {
+
+        if ((m < 1 || m > 9) | (t < 1 || t > 9)) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_B_m_n, Command.ESC_B_m_n.length);
+        data[2] = (byte) m;
+        data[3] = (byte) t;
+        return data;
+    }
+
+    /**
+     * 切刀指令(走纸到切刀位置并切纸)
+     *
+     * @param cut 0~255
+     * @return
+     */
+    public static byte[] POS_Set_Cut(int cut) {
+        if (cut > 255 | cut < 0) return null;
+
+        byte[] data = Arrays.copyOf(Command.GS_V_m_n, Command.GS_V_m_n.length);
+        data[3] = (byte) cut;
+        return data;
+    }
+
+    /**
+     * 钱箱指令
+     *
+     * @param nMode
+     * @param nTime1
+     * @param nTime2
+     * @return
+     */
+    public static byte[] POS_Set_Cashbox(int nMode, int nTime1, int nTime2) {
+
+        if ((nMode < 0 || nMode > 1) | nTime1 < 0 | nTime1 > 255 | nTime2 < 0 | nTime2 > 255) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_p, Command.ESC_p.length);
+        data[2] = (byte) nMode;
+        data[3] = (byte) nTime1;
+        data[4] = (byte) nTime2;
+        return data;
+    }
+
+    /**
+     * 设置绝对打印位置
+     *
+     * @param absolute
+     * @return
+     */
+    public static byte[] POS_Set_Absolute(int absolute) {
+        if (absolute > 65535 | absolute < 0) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_Absolute, Command.ESC_Absolute.length);
+        data[2] = (byte) (absolute % 0x100);
+        data[3] = (byte) (absolute / 0x100);
+        return data;
+    }
+
+    /**
+     * 设置相对打印位置
+     *
+     * @param relative
+     * @return
+     */
+    public static byte[] POS_Set_Relative(int relative) {
+        if (relative < 0 | relative > 65535) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_Relative, Command.ESC_Relative.length);
+        data[2] = (byte) (relative % 0x100);
+        data[3] = (byte) (relative / 0x100);
+        return data;
+    }
+
+    /**
+     * 设置左边距
+     *
+     * @param left
+     * @return
+     */
+    public static byte[] POS_Set_LeftSP(int left) {
+        if (left > 255 | left < 0) return null;
+
+        byte[] data = Arrays.copyOf(Command.GS_LeftSp, Command.GS_LeftSp.length);
+        data[2] = (byte) (left % 0x100);
+        data[3] = (byte) (left / 0x100);
+        return data;
+    }
+
+    /**
+     * 设置对齐模式
+     *
+     * @param align
+     * @return
+     */
+    public static byte[] POS_S_Align(int align) {
+        if ((align < 0 || align > 2) && (align < 48 || align > 50)) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_Align, Command.ESC_Align.length);
+        data[2] = (byte) align;
+        return data;
+    }
+
+    /**
+     * 设置打印区域宽度
+     *
+     * @param width
+     * @return
+     */
+    public static byte[] POS_Set_PrintWidth(int width) {
+        if (width < 0 | width > 255) return null;
+
+        byte[] data = Arrays.copyOf(Command.GS_W, Command.GS_W.length);
+        data[2] = (byte) (width % 0x100);
+        data[3] = (byte) (width / 0x100);
+        return data;
+    }
+
+    /**
+     * 设置默认行间距
+     *
+     * @return
+     */
+    public static byte[] POS_Set_DefLineSpace() {
+        return Command.ESC_Two;
+    }
+
+    /**
+     * 设置行间距
+     *
+     * @param space
+     * @return
+     */
+    public static byte[] POS_Set_LineSpace(int space) {
+        if (space < 0 | space > 255) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_Three, Command.ESC_Three.length);
+        data[2] = (byte) space;
+        return data;
+    }
+
+    /**
+     * 选择字符代码页
+     *
+     * @param page
+     * @return
+     */
+    public static byte[] POS_Set_CodePage(int page) {
+        if (page > 255) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_t, Command.ESC_t.length);
+        data[2] = (byte) page;
+        return data;
+    }
+
+    /**
+     * 打印文本文档
+     *
+     * @param pszString    要打印的字符串
+     * @param encoding     打印字符对应编码
+     * @param codepage     设置代码页(0--255)
+     * @param nWidthTimes  倍宽(0--4)
+     * @param nHeightTimes 倍高(0--4)
+     * @param nFontType    字体类型(只对Ascii码有效)(0,1 48,49)
+     */
+    public static byte[] POS_Print_Text(String pszString, String encoding, int codepage,
+                                        int nWidthTimes, int nHeightTimes, int nFontType) {
+        if (codepage < 0 || codepage > 255 || pszString == null || "".equals(pszString) || pszString.length() < 1) {
+            return null;
+        }
+
+        byte[] pbString = null;
+        try {
+            pbString = pszString.getBytes(encoding);
+        } catch (UnsupportedEncodingException e) {
+            return null;
+        }
+
+        byte[] intToWidth = {0x00, 0x10, 0x20, 0x30};
+        byte[] intToHeight = {0x00, 0x01, 0x02, 0x03};
+        byte[] gsExclamationMark = Arrays.copyOf(Command.GS_ExclamationMark, Command.GS_ExclamationMark.length);
+        gsExclamationMark[2] = (byte) (intToWidth[nWidthTimes] + intToHeight[nHeightTimes]);
+        byte[] escT = Arrays.copyOf(Command.ESC_t, Command.ESC_t.length);
+        escT[2] = (byte) codepage;
+        byte[] escM = Arrays.copyOf(Command.ESC_M, Command.ESC_M.length);
+        escM[2] = (byte) nFontType;
+        byte[] data = null;
+        if (codepage == 0) {
+            data = concatAll(gsExclamationMark, escT, Command.FS_and, escM, pbString);
+        } else {
+            data = concatAll(gsExclamationMark, escT, Command.FS_dot, escM, pbString);
+        }
+        return data;
+    }
+
+    /**
+     * 加粗指令(最低位为1有效)
+     *
+     * @param bold
+     * @return
+     */
+    public static byte[] POS_Set_Bold(int bold) {
+        byte[] escE = Arrays.copyOf(Command.ESC_E, Command.ESC_E.length);
+        byte[] escG = Arrays.copyOf(Command.ESC_G, Command.ESC_G.length);
+
+        escE[2] = (byte) bold;
+        escG[2] = (byte) bold;
+        return concatAll(escE, escG);
+    }
+
+    /**
+     * 设置倒置打印模式(当最低位为1时有效)
+     *
+     * @param brace
+     * @return
+     */
+    public static byte[] POS_Set_LeftBrace(int brace) {
+        byte[] data = Arrays.copyOf(Command.ESC_LeftBrace, Command.ESC_LeftBrace.length);
+        data[2] = (byte) brace;
+        return data;
+    }
+
+    /**
+     * 设置下划线
+     *
+     * @param line
+     * @return
+     */
+    public static byte[] POS_Set_UnderLine(int line) {
+        if ((line < 0 || line > 2)) return null;
+        byte[] escMins = Arrays.copyOf(Command.ESC_Minus, Command.ESC_Minus.length);
+        escMins[2] = (byte) line;
+        byte[] fsMinus = Arrays.copyOf(Command.FS_Minus, Command.FS_Minus.length);
+        fsMinus[2] = (byte) line;
+        return concatAll(escMins, fsMinus);
+    }
+
+    /**
+     * 选择字体大小(倍高倍宽)
+     *
+     * @param size1
+     * @param size2
+     * @return
+     */
+    public static byte[] POS_Set_FontSize(int size1, int size2) {
+        if (size1 < 0 | size1 > 7 | size2 < 0 | size2 > 7) return null;
+        byte[] intToWidth = {0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70};
+        byte[] intToHeight = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07};
+        byte[] data = Arrays.copyOf(Command.GS_ExclamationMark, Command.GS_ExclamationMark.length);
+        data[2] = (byte) (intToWidth[size1] + intToHeight[size2]);
+        return data;
+    }
+
+    /**
+     * 设置反显打印
+     *
+     * @param inverse
+     * @return
+     */
+    public static byte[] POS_Set_Inverse(int inverse) {
+        byte[] data = Arrays.copyOf(Command.GS_B, Command.GS_B.length);
+        data[2] = (byte) inverse;
+        return data;
+    }
+
+    /**
+     * 设置旋转90度打印
+     *
+     * @param rotate
+     * @return
+     */
+    public static byte[] POS_Set_Rotate(int rotate) {
+        if (rotate < 0 || rotate > 1) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_V, Command.ESC_V.length);
+        data[2] = (byte) rotate;
+        return data;
+    }
+
+    /**
+     * 选择字体字型
+     *
+     * @param font
+     * @return
+     */
+    public static byte[] POS_Set_ChoseFont(int font) {
+        if (font > 1 | font < 0) return null;
+
+        byte[] data = Arrays.copyOf(Command.ESC_M, Command.ESC_M.length);
+        data[2] = (byte) font;
+        return data;
+
+    }
+
+//***********************************以下函数为公开函数***********************************************************//
+
+    /**
+     * 二维码打印函数
+     *
+     * @param str                   打印二维码数据
+     * @param nVersion              二维码类型
+     * @param nErrorCorrectionLevel 纠错级别
+     * @param nMagnification        放大倍数
+     * @return
+     */
+    public static byte[] getQRCodeCommand(String str, int nVersion, int nErrorCorrectionLevel,
+                                       int nMagnification) {
+
+        if (nVersion < 0 | nVersion > 19 | nErrorCorrectionLevel < 0 | nErrorCorrectionLevel > 3
+                | nMagnification < 1 | nMagnification > 8) {
+            return null;
+        }
+
+        byte[] bCodeData = null;
+        try {
+            bCodeData = str.getBytes("GBK");
+
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+            return null;
+        }
+
+        byte[] command = new byte[bCodeData.length + 7];
+
+        command[0] = 27;
+        command[1] = 90;
+        command[2] = ((byte) nVersion);
+        command[3] = ((byte) nErrorCorrectionLevel);
+        command[4] = ((byte) nMagnification);
+        command[5] = (byte) (bCodeData.length & 0xff);
+        command[6] = (byte) ((bCodeData.length & 0xff00) >> 8);
+        System.arraycopy(bCodeData, 0, command, 7, bCodeData.length);
+
+        return command;
+    }
+
+    /**
+     * 打印一维条码
+     *
+     * @param str              打印条码字符
+     * @param nType            条码类型(65~73)
+     * @param nWidthX          条码宽度
+     * @param nHeight          条码高度
+     * @param nHriFontType     HRI字型
+     * @param nHriFontPosition HRI位置
+     * @return
+     */
+    public static byte[] getBarCodeCommand(String str, int nType, int nWidthX, int nHeight,
+                                           int nHriFontType, int nHriFontPosition) {
+
+        if (nType < 0x41 | nType > 0x49 | nWidthX < 2 | nWidthX > 6
+                | nHeight < 1 | nHeight > 255 | str.length() == 0)
+            return null;
+
+        byte[] bCodeData = null;
+        try {
+            bCodeData = str.getBytes("GBK");
+
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+            return null;
+        }
+
+        byte[] command = new byte[bCodeData.length + 16];
+
+        command[0] = 29;
+        command[1] = 119;
+        command[2] = ((byte) nWidthX);
+        command[3] = 29;
+        command[4] = 104;
+        command[5] = ((byte) nHeight);
+        command[6] = 29;
+        command[7] = 102;
+        command[8] = ((byte) (nHriFontType & 0x01));
+        command[9] = 29;
+        command[10] = 72;
+        command[11] = ((byte) (nHriFontPosition & 0x03));
+        command[12] = 29;
+        command[13] = 107;
+        command[14] = ((byte) nType);
+        command[15] = (byte) (byte) bCodeData.length;
+        System.arraycopy(bCodeData, 0, command, 16, bCodeData.length);
+
+
+        return command;
+    }
+
+    /**
+     * 设置打印模式(选择字体(font:A font:B),加粗,字体倍高倍宽(最大4倍高宽))
+     *
+     * @param str        打印的字符串
+     * @param bold       加粗
+     * @param font       选择字型
+     * @param widthsize  倍宽
+     * @param heigthsize 倍高
+     * @return
+     */
+    public static byte[] POS_Set_Font(String str, int bold, int font, int widthsize, int heigthsize) {
+
+        if (str.length() == 0 | widthsize < 0 | widthsize > 4 | heigthsize < 0 | heigthsize > 4
+                | font < 0 | font > 1)
+            return null;
+
+        byte[] strData = null;
+        try {
+            strData = str.getBytes("GBK");
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+            return null;
+        }
+
+        byte[] command = new byte[strData.length + 9];
+
+        byte[] intToWidth = {0x00, 0x10, 0x20, 0x30};//最大四倍宽
+        byte[] intToHeight = {0x00, 0x01, 0x02, 0x03};//最大四倍高
+
+        command[0] = 27;
+        command[1] = 69;
+        command[2] = ((byte) bold);
+        command[3] = 27;
+        command[4] = 77;
+        command[5] = ((byte) font);
+        command[6] = 29;
+        command[7] = 33;
+        command[8] = (byte) (intToWidth[widthsize] + intToHeight[heigthsize]);
+
+        System.arraycopy(strData, 0, command, 9, strData.length);
+        return command;
+    }
+
+//**********************************************************************************************************//
+
+    public static byte[] concatAll(byte[] first, byte[]... rest) {
+        int totalLength = first.length;
+        for (byte[] array : rest) {
+            totalLength += array.length;
+        }
+        byte[] result = Arrays.copyOf(first, totalLength);
+        int offset = first.length;
+        for (byte[] array : rest) {
+            System.arraycopy(array, 0, result, offset, array.length);
+            offset += array.length;
+        }
+        return result;
+    }
+}

android/src/main/java/cn/jystudio/bluetooth/tsc/RNBluetoothTscPrinterModule.java

@@ -0,0 +1,305 @@
+package cn.jystudio.bluetooth.tsc;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.util.Base64;
+import cn.jystudio.bluetooth.BluetoothService;
+import cn.jystudio.bluetooth.BluetoothServiceStateObserver;
+import com.facebook.react.bridge.*;
+
+import java.util.Map;
+import java.util.Vector;
+
+/**
+ * Created by januslo on 2018/9/22.
+ */
+public class RNBluetoothTscPrinterModule extends ReactContextBaseJavaModule
+implements BluetoothServiceStateObserver{
+    private static final String TAG="BluetoothTscPrinter";
+    private BluetoothService mService;
+
+    public RNBluetoothTscPrinterModule(ReactApplicationContext reactContext,BluetoothService bluetoothService) {
+        super(reactContext);
+        this.mService = bluetoothService;
+        this.mService.addStateObserver(this);
+    }
+
+    @Override
+    public String getName() {
+        return "BluetoothTscPrinter";
+    }
+
+    @ReactMethod
+    public void printLabel(final ReadableMap options, final Promise promise) {
+        int width = options.getInt("width");
+        int height = options.getInt("height");
+        int gap = options.hasKey("gap") ? options.getInt("gap") : 0;
+        TscCommand.SPEED speed = options.hasKey("speed")?this.findSpeed(options.getInt("speed")):null;
+        TscCommand.ENABLE enable = options.hasKey("tear") ?
+                options.getString("tear").equalsIgnoreCase(TscCommand.ENABLE.ON.getValue()) ? TscCommand.ENABLE.ON : TscCommand.ENABLE.OFF
+                : TscCommand.ENABLE.OFF;
+        ReadableArray texts = options.hasKey("text")? options.getArray("text"):null;
+        ReadableArray qrCodes = options.hasKey("qrcode")? options.getArray("qrcode"):null;
+        ReadableArray barCodes = options.hasKey("barcode")? options.getArray("barcode"):null;
+        ReadableArray images = options.hasKey("image")? options.getArray("image"):null;
+        ReadableArray reverses = options.hasKey("reverse")? options.getArray("reverse"):null;
+
+        TscCommand.DIRECTION direction = options.hasKey("direction") ?
+                TscCommand.DIRECTION.BACKWARD.getValue() == options.getInt("direction") ? TscCommand.DIRECTION.BACKWARD : TscCommand.DIRECTION.FORWARD
+                : TscCommand.DIRECTION.FORWARD;
+//        Not Support Yet
+//        TscCommand.MIRROR mirror = options.hasKey("mirror") ?
+//                TscCommand.MIRROR.MIRROR.getValue() == options.getInt("mirror") ? TscCommand.MIRROR.MIRROR : TscCommand.MIRROR.NORMAL
+//                : TscCommand.MIRROR.NORMAL;
+        TscCommand.DENSITY density = options.hasKey("density")?this.findDensity(options.getInt("density")):null;
+        ReadableArray reference = options.hasKey("reference")?options.getArray("reference"):null;
+
+        boolean sound = false;
+        if (options.hasKey("sound") && options.getInt("sound") == 1) {
+            sound = true;
+        }
+        boolean home = false;
+        if(options.hasKey("home") && options.getInt("home")== 1){
+            home = true;
+        }
+        TscCommand tsc = new TscCommand();
+        if(speed != null){
+            tsc.addSpeed(speed);//设置打印速度
+        }
+        if(density != null){
+            tsc.addDensity(density);//设置打印浓度
+        }
+        tsc.addSize(width,height); //设置标签尺寸，按照实际尺寸设置
+        tsc.addGap(gap);           //设置标签间隙，按照实际尺寸设置，如果为无间隙纸则设置为0
+         tsc.addDirection(direction);//设置打印方向
+        //设置原点坐标
+        if (reference != null && reference.size() == 2) {
+            tsc.addReference(reference.getInt(0), reference.getInt(1));
+        } else {
+            tsc.addReference(0, 0);
+        }
+        tsc.addTear(enable); //撕纸模式开启
+        if(home) {
+            tsc.addBackFeed(16);
+            tsc.addHome();//走纸到开始位置
+        }
+        tsc.addCls();// 清除打印缓冲区
+        //绘制简体中文
+        for (int i = 0;texts!=null&& i < texts.size(); i++) {
+            ReadableMap text = texts.getMap(i);
+            String t = text.getString("text");
+            int x = text.getInt("x");
+            int y = text.getInt("y");
+            TscCommand.FONTTYPE fonttype = this.findFontType(text.getString("fonttype"));
+            TscCommand.ROTATION rotation = this.findRotation(text.getInt("rotation"));
+            TscCommand.FONTMUL xscal = this.findFontMul(text.getInt("xscal"));
+            TscCommand.FONTMUL yscal = this.findFontMul(text.getInt("xscal"));
+            boolean bold = text.hasKey("bold") && text.getBoolean("bold");
+
+            try {
+                byte[] temp = t.getBytes("UTF-8");
+                String temStr = new String(temp, "UTF-8");
+                t = new String(temStr.getBytes("GB2312"), "GB2312");//打印的文字
+            } catch (Exception e) {
+                promise.reject("INVALID_TEXT", e);
+                return;
+            }
+
+            tsc.addText(x, y, fonttype/*字体类型*/,
+                    rotation/*旋转角度*/, xscal/*横向放大*/, yscal/*纵向放大*/, t);
+
+            if(bold){
+                tsc.addText(x+1, y, fonttype,
+                        rotation, xscal, yscal, t/*这里的t可能需要替换成同等长度的空格*/);
+                tsc.addText(x, y+1, fonttype,
+                        rotation, xscal, yscal, t/*这里的t可能需要替换成同等长度的空格*/);
+            }
+        }
+
+        //绘制图片
+        if(images != null){
+            for (int i = 0; i < images.size(); i++) {
+                ReadableMap img = images.getMap(i);
+                int x = img.getInt("x");
+                int y = img.getInt("y");
+                int imgWidth = img.getInt("width");
+                TscCommand.BITMAP_MODE mode = this.findBitmapMode(img.getInt("mode"));
+                String image  = img.getString("image");
+                byte[] decoded = Base64.decode(image, Base64.DEFAULT);
+                Bitmap b = BitmapFactory.decodeByteArray(decoded, 0, decoded.length);
+                tsc.addBitmap(x,y, mode, imgWidth,b);
+            }
+        }
+
+        if (qrCodes != null) {
+            for (int i = 0; i < qrCodes.size(); i++) {
+                ReadableMap qr = qrCodes.getMap(i);
+                int x = qr.getInt("x");
+                int y = qr.getInt("y");
+                int qrWidth = qr.getInt("width");
+                TscCommand.EEC level = this.findEEC(qr.getString("level"));
+                TscCommand.ROTATION rotation = this.findRotation(qr.getInt("rotation"));
+                String code = qr.getString("code");
+                tsc.addQRCode(x, y, level, qrWidth, rotation, code);
+            }
+        }
+        if (barCodes != null) {
+            for (int i = 0; i < barCodes.size(); i++) {
+                ReadableMap bar = barCodes.getMap(i);
+                int x = bar.hasKey("x") ? bar.getInt("x") : 0;
+                int y = bar.hasKey("y") ? bar.getInt("y") : 0;
+                int barHeight = bar.hasKey("height") ? bar.getInt("height") : 200;
+                int barWide = bar.hasKey("wide") ? bar.getInt("wide") : 2;
+                int narrow = bar.hasKey("narrow") ? bar.getInt("narrow") : 1;
+                TscCommand.ROTATION rotation = this.findRotation(bar.getInt("rotation"));
+                String code = bar.getString("code");
+                TscCommand.BARCODETYPE type = this.findBarcodeType(bar.getString("type"));
+                TscCommand.READABLE readable = this.findReadable(bar.getInt("readable"));
+                tsc.add1DBarcode(x, y, type, barHeight, barWide, narrow, readable, rotation, code);
+            }
+        }
+
+        if(reverses != null){
+            for(int i=0; i < reverses.size(); i++){
+                ReadableMap area = reverses.getMap(i);
+                int ax = area.getInt("x");
+                int ay = area.getInt("y");
+                int aWidth = area.getInt("width");
+                int aHeight = area.getInt("height");
+                tsc.addReverse(ax,ay,aWidth,aHeight);
+            }
+        }
+
+        tsc.addPrint(1, 1); // 打印标签
+        if (sound) {
+            tsc.addSound(2, 100); //打印标签后 蜂鸣器响
+        }
+        Vector<Byte> bytes = tsc.getCommand();
+        byte[] tosend = new byte[bytes.size()];
+        for(int i=0;i<bytes.size();i++){
+            tosend[i]= bytes.get(i);
+        }
+        if(sendDataByte(tosend)){
+            promise.resolve(null);
+        }else{
+            promise.reject("COMMAND_SEND_ERROR");
+        }
+    }
+
+    private TscCommand.BARCODETYPE findBarcodeType(String type) {
+        TscCommand.BARCODETYPE barcodeType = TscCommand.BARCODETYPE.CODE128;
+        for (TscCommand.BARCODETYPE t : TscCommand.BARCODETYPE.values()) {
+            if ((""+t.getValue()).equalsIgnoreCase(type)) {
+                barcodeType = t;
+                break;
+            }
+        }
+        return barcodeType;
+    }
+
+    private TscCommand.READABLE findReadable(int readable) {
+        TscCommand.READABLE ea = TscCommand.READABLE.EANBLE;
+        if (TscCommand.READABLE.DISABLE.getValue() == readable) {
+            ea = TscCommand.READABLE.DISABLE;
+        }
+        return ea;
+    }
+
+    private TscCommand.FONTMUL findFontMul(int scan) {
+        TscCommand.FONTMUL mul = TscCommand.FONTMUL.MUL_1;
+        for (TscCommand.FONTMUL m : TscCommand.FONTMUL.values()) {
+            if (m.getValue() == scan) {
+                mul = m;
+                break;
+            }
+        }
+        return mul;
+    }
+
+    private TscCommand.ROTATION findRotation(int rotation) {
+        TscCommand.ROTATION rt = TscCommand.ROTATION.ROTATION_0;
+        for (TscCommand.ROTATION r : TscCommand.ROTATION.values()) {
+            if (r.getValue() == rotation) {
+                rt = r;
+                break;
+            }
+        }
+        return rt;
+    }
+
+    private TscCommand.FONTTYPE findFontType(String fonttype) {
+        TscCommand.FONTTYPE ft = TscCommand.FONTTYPE.FONT_CHINESE;
+        for (TscCommand.FONTTYPE f : TscCommand.FONTTYPE.values()) {
+            if ((""+f.getValue()).equalsIgnoreCase(fonttype)) {
+                ft = f;
+                break;
+            }
+        }
+        return ft;
+    }
+
+
+    private TscCommand.SPEED findSpeed(int speed){
+        TscCommand.SPEED sd = null;
+        switch(speed){
+            case 1:
+                sd = TscCommand.SPEED.SPEED1DIV5;
+                break;
+            case 2:
+                sd = TscCommand.SPEED.SPEED2;
+                break;
+            case 3:
+                sd = TscCommand.SPEED.SPEED3;
+                break;
+            case 4:
+                sd = TscCommand.SPEED.SPEED4;
+                break;
+        }
+        return sd;
+    }
+
+    private TscCommand.EEC findEEC(String level) {
+        TscCommand.EEC eec = TscCommand.EEC.LEVEL_L;
+        for (TscCommand.EEC e : TscCommand.EEC.values()) {
+            if (e.getValue().equalsIgnoreCase(level)) {
+                eec = e;
+                break;
+            }
+        }
+        return eec;
+    }
+
+    private TscCommand.DENSITY findDensity(int density){
+        TscCommand.DENSITY ds = null;
+        for (TscCommand.DENSITY d : TscCommand.DENSITY.values()) {
+            if (d.getValue() == density) {
+                ds = d;
+                break;
+            }
+        }
+        return ds;
+    }
+    private TscCommand.BITMAP_MODE findBitmapMode(int mode){
+        TscCommand.BITMAP_MODE bm = TscCommand.BITMAP_MODE.OVERWRITE;
+        for (TscCommand.BITMAP_MODE m : TscCommand.BITMAP_MODE.values()) {
+            if (m.getValue() == mode) {
+                bm = m;
+                break;
+            }
+        }
+        return bm;
+    }
+
+    private boolean sendDataByte(byte[] data) {
+        if (mService.getState() != BluetoothService.STATE_CONNECTED) {
+            return false;
+        }
+        mService.write(data);
+        return true;
+    }
+
+    @Override
+    public void onBluetoothServiceStateChanged(int state, Map<String, Object> boundle) {
+
+    }
+}

android/src/main/java/cn/jystudio/bluetooth/tsc/TscCommand.java

@@ -0,0 +1,525 @@
+package cn.jystudio.bluetooth.tsc;
+
+import android.graphics.Bitmap;
+import android.util.Log;
+import cn.jystudio.bluetooth.escpos.command.sdk.PrintPicture;
+
+import java.io.UnsupportedEncodingException;
+import java.util.Vector;
+
+public class TscCommand {
+    private static final String DEBUG_TAG = "TSCCommand";
+    private Vector<Byte> Command = null;
+
+    public static enum FOOT {
+        F2(0), F5(1);
+
+        private FOOT(int value) {
+            this.value = value;
+        }
+
+        private final int value;
+
+        public int getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum SPEED {
+        SPEED1DIV5(1.5F), SPEED2(2.0F), SPEED3(3.0F), SPEED4(4.0F);
+
+        private SPEED(float value) {
+            this.value = value;
+        }
+
+        private final float value;
+
+        public float getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum READABLE {
+        DISABLE(0), EANBLE(1);
+
+        private READABLE(int value) {
+            this.value = value;
+        }
+
+        private final int value;
+
+        public int getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum BITMAP_MODE {
+        OVERWRITE(0), OR(1), XOR(2);
+
+        private BITMAP_MODE(int value) {
+            this.value = value;
+        }
+
+        private final int value;
+
+        public int getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum DENSITY {
+        DNESITY0(0), DNESITY1(1), DNESITY2(2), DNESITY3(3), DNESITY4(4), DNESITY5(5), DNESITY6(6), DNESITY7(
+                7), DNESITY8(8), DNESITY9(9), DNESITY10(10), DNESITY11(11), DNESITY12(12), DNESITY13(13), DNESITY14(
+                14), DNESITY15(15);
+
+        private DENSITY(int value) {
+            this.value = value;
+        }
+
+        private final int value;
+
+        public int getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum DIRECTION {
+        FORWARD(0), BACKWARD(1);
+
+        private DIRECTION(int value) {
+            this.value = value;
+        }
+
+        private final int value;
+
+        public int getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum CODEPAGE {
+        PC437(437), PC850(850), PC852(852), PC860(860), PC863(863), PC865(865), WPC1250(1250), WPC1252(1252), WPC1253(
+                1253), WPC1254(1254);
+
+        private CODEPAGE(int value) {
+            this.value = value;
+        }
+
+        private final int value;
+
+        public int getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum FONTMUL {
+        MUL_1(1), MUL_2(2), MUL_3(3), MUL_4(4), MUL_5(5), MUL_6(6), MUL_7(7), MUL_8(8), MUL_9(9), MUL_10(10);
+
+        private FONTMUL(int value) {
+            this.value = value;
+        }
+
+        private final int value;
+
+        public int getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum FONTTYPE {
+        FONT_1("1"), FONT_2("2"), FONT_3("3"), FONT_4("4"), FONT_5("5"), FONT_6("6"), FONT_7("7"), FONT_8(
+                "8"), FONT_CHINESE("TSS24.BF2"), FONT_TAIWAN("TST24.BF2"), FONT_KOREAN("K");
+
+        private FONTTYPE(String value) {
+            this.value = value;
+        }
+
+        private final String value;
+
+        public String getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum ROTATION {
+        ROTATION_0(0), ROTATION_90(90), ROTATION_180(180), ROTATION_270(270);
+
+        private ROTATION(int value) {
+            this.value = value;
+        }
+
+        private final int value;
+
+        public int getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum BARCODETYPE {
+        CODE128("128"), CODE128M("128M"), EAN128("EAN128"), ITF25("25"), ITF25C("25C"), CODE39("39"), CODE39C(
+                "39C"), CODE39S("39S"), CODE93("93"), EAN13("EAN13"), EAN13_2("EAN13+2"), EAN13_5("EAN13+5"), EAN8(
+                "EAN8"), EAN8_2("EAN8+2"), EAN8_5("EAN8+5"), CODABAR("CODA"), POST("POST"), UPCA(
+                "EAN13"), UPCA_2("EAN13+2"), UPCA_5("EAN13+5"), UPCE("EAN13"), UPCE_2(
+                "EAN13+2"), UPCE_5("EAN13+5"), CPOST("CPOST"), MSI("MSI"), MSIC(
+                "MSIC"), PLESSEY("PLESSEY"), ITF14("ITF14"), EAN14("EAN14");
+
+        private final String value;
+
+        private BARCODETYPE(String value) {
+            this.value = value;
+        }
+
+        public String getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum ENABLE {
+        ON("ON"), OFF("OFF");
+
+        private final String value;
+
+        private ENABLE(String value) {
+            this.value = value;
+        }
+
+        public String getValue() {
+            return this.value;
+        }
+    }
+
+    public static enum EEC {
+        LEVEL_L("L"),
+        LEVEL_M("M"),
+        LEVEL_Q("Q"),
+        LEVEL_H("H");
+        private final String value;
+
+        private EEC(String value) {
+            this.value = value;
+        }
+
+        public String getValue() {
+            return this.value;
+        }
+
+    }
+
+//    public static enum MIRROR {
+//        NORMAL(0), MIRROR(1);
+//        private final int value;
+//        private MIRROR(int value){
+//            this.value = value;
+//        }
+//        public int getValue(){return this.value;}
+//    }
+
+    public TscCommand() {
+        this.Command = new Vector(4096, 1024);
+    }
+
+    public TscCommand(int width, int height, int gap) {
+        this.Command = new Vector(4096, 1024);
+        addSize(width, height);
+        addGap(gap);
+    }
+
+    public void clrCommand() {
+        this.Command.clear();
+    }
+
+    private void addStrToCommand(String str) {
+        byte[] bs = null;
+        if (!str.equals("")) {
+            try {
+                bs = str.getBytes("GB2312");
+            } catch (UnsupportedEncodingException e) {
+                e.printStackTrace();
+            }
+            for (int i = 0; i < bs.length; i++) {
+                this.Command.add(Byte.valueOf(bs[i]));
+            }
+        }
+    }
+
+    public void addGap(int gap) {
+        String str = new String();
+        str = "GAP " + gap + " mm," + 0 + " mm" + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addSize(int width, int height) {
+        String str = new String();
+        str = "SIZE " + width + " mm," + height + " mm" + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addCashdrwer(FOOT m, int t1, int t2) {
+        String str = new String();
+        str = "CASHDRAWER " + m.getValue() + "," + t1 + "," + t2 + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addOffset(int offset) {
+        String str = new String();
+        str = "OFFSET " + offset + " mm" + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addSpeed(SPEED speed) {
+        String str = new String();
+        str = "SPEED " + speed.getValue() + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addDensity(DENSITY density) {
+        String str = new String();
+        str = "DENSITY " + density.getValue() + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addDirection(DIRECTION direction) {
+        String str = new String();
+        str = "DIRECTION " + direction.getValue() + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addReference(int x, int y) {
+        String str = new String();
+        str = "REFERENCE " + x + "," + y + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addShif(int shift) {
+        String str = new String();
+        str = "SHIFT " + shift + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addCls() {
+        String str = new String();
+        str = "CLS\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addFeed(int dot) {
+        String str = new String();
+        str = "FEED " + dot + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addBackFeed(int dot) {
+        String str = new String();
+        str = "BACKFEED " + dot + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addFormFeed() {
+        String str = new String();
+        str = "FORMFEED\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addHome() {
+        String str = new String();
+        str = "HOME\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addPrint(int m, int n) {
+        String str = new String();
+        str = "PRINT " + m + "," + n + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addCodePage(CODEPAGE page) {
+        String str = new String();
+        str = "CODEPAGE " + page.getValue() + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addSound(int level, int interval) {
+        String str = new String();
+        str = "SOUND " + level + "," + interval + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addLimitFeed(int n) {
+        String str = new String();
+        str = "LIMITFEED " + n + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addSelfTest() {
+        String str = new String();
+        str = "SELFTEST\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addBar(int x, int y, int width, int height) {
+        String str = new String();
+        str = "BAR " + x + "," + y + "," + width + "," + height + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addText(int x, int y, FONTTYPE font, ROTATION rotation, FONTMUL Xscal, FONTMUL Yscal, String text) {
+        String str = new String();
+        str = "TEXT " + x + "," + y + "," + "\"" + font.getValue() + "\"" + "," + rotation.getValue() + ","
+                + Xscal.getValue() + "," + Yscal.getValue() + "," + "\"" + text + "\"" + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void add1DBarcode(int x, int y, BARCODETYPE type, int height, int wide, int narrow, READABLE readable, ROTATION rotation,
+                             String content) {
+        String str = new String();
+        str = "BARCODE " + x + "," + y + "," + "\"" + type.getValue() + "\"" + "," + height + "," + readable.getValue()
+                + "," + rotation.getValue() + "," + narrow + "," + wide + "," + "\"" + content + "\"" + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addQRCode(int x, int y, EEC level, int qrWidth, ROTATION rotation, String code) {
+        //var cmd = 'QRCODE 条码X方向起始点,条码Y方向起始点,纠错级别,二维码高度,A(A和M),旋转角度,M2（分为类型1和类型2）,S1 (s1-s8,默认s7),\"1231你好2421341325454353\"';
+        String str = "QRCODE " + x + "," + y + "," + level.getValue() + "," + qrWidth + ",A," + rotation.getValue() + ",M2,S1,\"" + code + "\"\r\n";
+        addStrToCommand(str);
+    }
+//    public void addBitmap(int x,int y,BITMAP_MODE mode,int imgWidth, Bitmap b){
+//
+//        int width = ((imgWidth + 7) / 8) * 8;
+//        int height = b.getHeight() * width / b.getWidth();
+//        height = ((height + 7) / 8) * 8;
+//
+//        Bitmap rszBitmap = b;
+//        if (b.getWidth() != width) {
+//            rszBitmap = Bitmap.createScaledBitmap(b, width, height, true);
+//        }
+//
+//        Bitmap grayBitmap = PrintPicture.toGrayscale(rszBitmap);
+//        byte[] dithered = PrintPicture.thresholdToBWPic(grayBitmap);
+//        byte[] data =PrintPicture.eachLinePixToCmd(dithered, width, mode.getValue());
+//        height = dithered.length / width;
+//        width /= 8;
+//        //{command} {X},{Y },{width},{ height },{mode},{bitmap data }
+//        //  String str = "BITMAP " + x + "," + y + "," + width + "," + height + "," + mode.getValue() + ",";
+//        String str = "BITMAP "+x+","+y+","+width+","+height+","+mode.getValue()+",";
+//        addStrToCommand(str);
+//        for(int i=0;i<data.length;i++){
+//            Command.add(Byte.valueOf(data[i]));
+//        }
+//        addStrToCommand("\r\n");
+//    }
+
+
+    public void addBitmap(int x, int y, TscCommand.BITMAP_MODE mode, int nWidth, Bitmap b) {
+        if (b != null) {
+            int width = (nWidth + 7) / 8 * 8;
+            int height = b.getHeight() * width / b.getWidth();
+            Log.d("BMP", "bmp.getWidth() " + b.getWidth());
+            Bitmap grayBitmap = PrintPicture.toGrayscale(b);
+            Bitmap rszBitmap = PrintPicture.resizeImage(grayBitmap, width, height);
+            byte[] src = PrintPicture.bitmapToBWPix(rszBitmap);
+            height = src.length / width;
+            width /= 8;
+            String str = "BITMAP " + x + "," + y + "," + width + "," + height + "," + mode.getValue() + ",";
+            this.addStrToCommand(str);
+            byte[] codecontent = PrintPicture.pixToTscCmd(src);
+
+            for (int k = 0; k < codecontent.length; ++k) {
+                this.Command.add(Byte.valueOf(codecontent[k]));
+            }
+
+            Log.d("TSCCommand", "codecontent" + codecontent);
+            addStrToCommand("\r\n");
+        }
+
+    }
+
+    public void addBox(int x, int y, int xend, int yend) {
+        String str = new String();
+        str = "BAR " + x + "," + y + "," + xend + "," + yend + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addErase(int x, int y, int xwidth, int yheight) {
+        String str = new String();
+        str = "ERASE " + x + "," + y + "," + xwidth + "," + yheight + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addReverse(int x, int y, int xwidth, int yheight) {
+        String str = new String();
+        str = "REVERSE " + x + "," + y + "," + xwidth + "," + yheight + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public Vector<Byte> getCommand() {
+        return this.Command;
+    }
+
+    public void queryPrinterType() {
+        String str = new String();
+        str = "~!T\r\n";
+        addStrToCommand(str);
+    }
+
+    public void queryPrinterStatus() {
+        this.Command.add(Byte.valueOf((byte) 27));
+        this.Command.add(Byte.valueOf((byte) 33));
+        this.Command.add(Byte.valueOf((byte) 63));
+    }
+
+    public void resetPrinter() {
+        this.Command.add(Byte.valueOf((byte) 27));
+        this.Command.add(Byte.valueOf((byte) 33));
+        this.Command.add(Byte.valueOf((byte) 82));
+    }
+
+    public void queryPrinterLife() {
+        String str = new String();
+        str = "~!@\r\n";
+        addStrToCommand(str);
+    }
+
+    public void queryPrinterMemory() {
+        String str = new String();
+        str = "~!A\r\n";
+        addStrToCommand(str);
+    }
+
+    public void queryPrinterFile() {
+        String str = new String();
+        str = "~!F\r\n";
+        addStrToCommand(str);
+    }
+
+    public void queryPrinterCodePage() {
+        String str = new String();
+        str = "~!I\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addPeel(ENABLE enable) {
+        String str = new String();
+        str = "SET PEEL " + enable.getValue() + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addTear(ENABLE enable) {
+        String str = new String();
+        str = "SET TEAR " + enable.getValue() + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addCutter(ENABLE enable) {
+        String str = new String();
+        str = "SET CUTTER " + enable.getValue() + "\r\n";
+        addStrToCommand(str);
+    }
+
+    public void addPartialCutter(ENABLE enable) {
+        String str = new String();
+        str = "SET PARTIAL_CUTTER " + enable.getValue() + "\r\n";
+        addStrToCommand(str);
+    }
+
+
+}

android/src/main/main1.iml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="FacetManager">
+    <facet type="android" name="Android">
+      <configuration />
+    </facet>
+  </component>
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/gen" isTestSource="false" generated="true" />
+    </content>
+    <orderEntry type="jdk" jdkName="Android 5.1.1 Google APIs" jdkType="Android SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

index.js

@@ -0,0 +1,146 @@
+
+import { NativeModules } from 'react-native';
+ const {BluetoothManager,BluetoothEscposPrinter,BluetoothTscPrinter}= NativeModules;
+
+BluetoothTscPrinter.DIRECTION = {
+    FORWARD: 0,
+    BACKWARD: 1
+};
+
+BluetoothTscPrinter.DENSITY = {
+    DNESITY0: 0,
+    DNESITY1: 1,
+    DNESITY2: 2,
+    DNESITY3: 3,
+    DNESITY4: 4,
+    DNESITY5: 5,
+    DNESITY6: 6,
+    DNESITY7: 7,
+    DNESITY8: 8,
+    DNESITY9: 9,
+    DNESITY10: 10,
+    DNESITY11: 11,
+    DNESITY12: 12,
+    DNESITY13: 13,
+    DNESITY14: 14,
+    DNESITY15: 15
+};
+BluetoothTscPrinter.BARCODETYPE = {
+    CODE128: "128",
+    CODE128M: "128M",
+    EAN128: "EAN128",
+    ITF25: "25",
+    ITF25C: "25C",
+    CODE39: "39",
+    CODE39C: "39C",
+    CODE39S: "39S",
+    CODE93: "93",
+    EAN13: "EAN13",
+    EAN13_2: "EAN13+2",
+    EAN13_5: "EAN13+5",
+    EAN8: "EAN8",
+    EAN8_2: "EAN8+2",
+    EAN8_5: "EAN8+5",
+    CODABAR: "CODA",
+    POST: "POST",
+    UPCA: "EAN13",
+    UPCA_2: "EAN13+2",
+    UPCA_5: "EAN13+5",
+    UPCE: "EAN13",
+    UPCE_2: "EAN13+2",
+    UPCE_5: "EAN13+5",
+    CPOST: "CPOST",
+    MSI: "MSI",
+    MSIC: "MSIC",
+    PLESSEY: "PLESSEY",
+    ITF14: "ITF14",
+    EAN14: "EAN14"
+};
+BluetoothTscPrinter.FONTTYPE = {
+    FONT_1: "1",
+    FONT_2: "2",
+    FONT_3: "3",
+    FONT_4: "4",
+    FONT_5: "5",
+    FONT_6: "6",
+    FONT_7: "7",
+    FONT_8: "8",
+    SIMPLIFIED_CHINESE: "TSS24.BF2",
+    TRADITIONAL_CHINESE: "TST24.BF2",
+    KOREAN: "K"
+};
+BluetoothTscPrinter.EEC = {
+    LEVEL_L: "L",
+    LEVEL_M: "M",
+    LEVEL_Q: "Q",
+    LEVEL_H: "H"
+
+};
+BluetoothTscPrinter.ROTATION = {
+    ROTATION_0: 0,
+    ROTATION_90: 90,
+    ROTATION_180: 180,
+    ROTATION_270: 270
+};
+ BluetoothTscPrinter.FONTMUL = {
+    MUL_1: 1,
+    MUL_2: 2,
+    MUL_3: 3,
+    MUL_4: 4,
+    MUL_5: 5,
+    MUL_6: 6,
+    MUL_7: 7,
+    MUL_8: 8,
+    MUL_9: 9,
+    MUL_10: 10
+};
+BluetoothTscPrinter.BITMAP_MODE = {
+    OVERWRITE: 0,
+    OR: 1,
+    XOR: 2
+};
+BluetoothTscPrinter.PRINT_SPEED = {
+    SPEED1DIV5:1,
+    SPEED2:2,
+    SPEED3:3,
+    SPEED4:4
+};
+BluetoothTscPrinter.TEAR = {
+	ON:'ON',
+	OFF:'OFF'
+};
+BluetoothTscPrinter.READABLE={
+  DISABLE:0,
+  EANBLE:1
+};
+
+BluetoothEscposPrinter.ERROR_CORRECTION = {
+    L:1,
+    M:0,
+    Q:3,
+    H:2
+};
+
+BluetoothEscposPrinter.BARCODETYPE={
+    UPC_A:65,//11<=n<=12
+    UPC_E:66,//11<=n<=12
+    JAN13:67,//12<=n<=12
+    JAN8:68,//7<=n<=8
+    CODE39:69,//1<=n<=255
+    ITF:70,//1<=n<=255(even numbers)
+    CODABAR:71,//1<=n<=255
+    CODE93:72,//1<=n<=255
+    CODE128:73//2<=n<=255
+};
+BluetoothEscposPrinter.ROTATION={
+    OFF:0,
+    ON:1
+};
+BluetoothEscposPrinter.ALIGN={
+    LEFT:0,
+    CENTER:1,
+    RIGHT:2
+};
+
+ module.exports ={
+    BluetoothManager,BluetoothEscposPrinter,BluetoothTscPrinter};

ios/ColumnSplitedString.h

@@ -0,0 +1,11 @@
+//
+//  ColumnSplitedString.h
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/6.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+@interface ColumnSplitedString:NSObject
+@property NSInteger shorter;
+@property NSString *str;
+@end

ios/ColumnSplitedString.m

@@ -0,0 +1,13 @@
+//
+//  ColumnSplitedString.m
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/6.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import "ColumnSplitedString.h"
+
+@implementation ColumnSplitedString
+@end

ios/ImageUtils.h

@@ -0,0 +1,19 @@
+//
+//  ImageUtils.h
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/7.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+@interface ImageUtils :NSObject
++ (UIImage*)imagePadLeft:(NSInteger) left withSource: (UIImage*)source;
++ (uint8_t *)imageToGreyImage:(UIImage *)image;
++ (UIImage *)imageWithImage:(UIImage *)image scaledToFillSize:(CGSize)size;
++ (NSData*)bitmapToArray:(UIImage*) bmp;
++ (NSData *)eachLinePixToCmd:(unsigned char *)src nWidth:(NSInteger) nWidth nHeight:(NSInteger) nHeight nMode:(NSInteger) nMode;
++(unsigned char *)format_K_threshold:(unsigned char *) orgpixels
+                               width:(NSInteger) xsize height:(NSInteger) ysize;
++(NSData *)pixToTscCmd:(uint8_t *)src width:(NSInteger) width;
+@end

ios/ImageUtils.m

@@ -0,0 +1,277 @@
+//
+//  ImageUtils.m
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/7.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+#import "ImageUtils.h"
+@implementation ImageUtils : NSObject
+int p0[] = { 0, 0x80 };
+int p1[] = { 0, 0x40 };
+int p2[] = { 0, 0x20 };
+int p3[] = { 0, 0x10 };
+int p4[] = { 0, 0x08 };
+int p5[] = { 0, 0x04 };
+int p6[] = { 0, 0x02 };
+
++ (UIImage*)imagePadLeft:(NSInteger) left withSource: (UIImage*)source
+{
+    CGSize orgSize = [source size];
+    CGSize size = CGSizeMake(orgSize.width + [[NSNumber numberWithInteger: left] floatValue], orgSize.height);
+    UIGraphicsBeginImageContext(size);
+    CGContextRef context = UIGraphicsGetCurrentContext();
+    CGContextSetFillColorWithColor(context,
+                                   [[UIColor whiteColor] CGColor]);
+    CGContextFillRect(context, CGRectMake(0, 0, size.width, size.height));
+    [source drawInRect:CGRectMake(left, 0, orgSize.width, orgSize.height)
+             blendMode:kCGBlendModeNormal alpha:1.0];
+    UIImage *paddedImage =  UIGraphicsGetImageFromCurrentImageContext();
+    UIGraphicsEndImageContext();
+    return paddedImage;
+}
+
++(uint8_t *)imageToGreyImage:(UIImage *)image {
+    // Create image rectangle with current image width/height
+    int kRed = 1;
+    int kGreen = 2;
+    int kBlue = 4;
+
+    int colors = kGreen | kBlue | kRed;
+
+    CGFloat actualWidth = image.size.width;
+    CGFloat actualHeight = image.size.height;
+    NSLog(@"actual size: %f,%f",actualWidth,actualHeight);
+    uint32_t *rgbImage = (uint32_t *) malloc(actualWidth * actualHeight * sizeof(uint32_t));
+    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
+    CGContextRef context = CGBitmapContextCreate(rgbImage, actualWidth, actualHeight, 8, actualWidth*4, colorSpace,
+                                                 kCGBitmapByteOrder32Little | kCGImageAlphaNoneSkipLast);
+    CGContextSetInterpolationQuality(context, kCGInterpolationHigh);
+    CGContextSetShouldAntialias(context, NO);
+    CGContextDrawImage(context, CGRectMake(0, 0, actualWidth, actualHeight), [image CGImage]);
+    CGContextRelease(context);
+    CGColorSpaceRelease(colorSpace);
+    
+//    CGRect imageRect = CGRectMake(0, 0, actualWidth, actualHeight);
+//    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceGray();
+//
+//    CGContextRef context = CGBitmapContextCreate(rgbImage, actualWidth, actualHeight, 8, actualWidth*4, colorSpace, kCGBitmapByteOrder32Little | kCGImageAlphaNoneSkipLast);
+//    CGContextDrawImage(context, imageRect, [image CGImage]);
+//
+//    //CGImageRef grayImage = CGBitmapContextCreateImage(context);
+//    CGColorSpaceRelease(colorSpace);
+//    CGContextRelease(context);
+    
+//    context = CGBitmapContextCreate(nil, actualWidth, actualHeight, 8, 0, nil, kCGImageAlphaOnly);
+//    CGContextDrawImage(context, imageRect, [image CGImage]);
+//    CGImageRef mask = CGBitmapContextCreateImage(context);
+//    CGContextRelease(context);
+    
+//    UIImage *grayScaleImage = [UIImage imageWithCGImage:CGImageCreateWithMask(grayImage, mask) scale:image.scale orientation:image.imageOrientation];
+//    CGImageRelease(grayImage);
+ //   CGImageRelease(mask);
+    
+    // Return the new grayscale image
+    
+     //now convert to grayscale
+    uint8_t *m_imageData = (uint8_t *) malloc(actualWidth * actualHeight);
+   // NSMutableString *toLog = [[NSMutableString alloc] init];
+    for(int y = 0; y < actualHeight; y++) {
+        for(int x = 0; x < actualWidth; x++) {
+            uint32_t rgbPixel=rgbImage[(int)(y*actualWidth+x)];
+            uint32_t sum=0,count=0;
+            if (colors & kRed) {sum += (rgbPixel>>24)&255; count++;}
+            if (colors & kGreen) {sum += (rgbPixel>>16)&255; count++;}
+            if (colors & kBlue) {sum += (rgbPixel>>8)&255; count++;}
+           // [toLog appendFormat:@"pixel:%d,sum:%d,count:%d,val:%d;",rgbPixel,sum,count,(int)(sum/count)];
+            m_imageData[(int)(y*actualWidth+x)]=sum/count;
+           
+        }
+    }
+    //NSLog(@"m_imageData:%@",toLog);
+    return m_imageData;
+//    // Create image rectangle with current image width/height
+//    CGRect imageRect = CGRectMake(0, 0, image.size.width, image.size.height);
+//
+//    // Grayscale color space
+//    CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceGray();
+//
+//    // Create bitmap content with current image size and grayscale colorspace
+//    CGContextRef context = CGBitmapContextCreate(nil, image.size.width, image.size.height, 8, 0, colorSpace, kCGImageAlphaNone);
+//
+//    // Draw image into current context, with specified rectangle
+//    // using previously defined context (with grayscale colorspace)
+//    CGContextDrawImage(context, imageRect, [image CGImage]);
+//
+//    // Create bitmap image info from pixel data in current context
+//    CGImageRef imageRef = CGBitmapContextCreateImage(context);
+//
+//    // Create a new UIImage object
+//    UIImage *newImage = [UIImage imageWithCGImage:imageRef];
+//
+//    // Release colorspace, context and bitmap information
+//    CGColorSpaceRelease(colorSpace);
+//    CGContextRelease(context);
+//    CFRelease(imageRef);
+//
+//    // Return the new grayscale image
+//    return newImage;
+    
+}
+
++ (UIImage *)imageWithImage:(UIImage *)image scaledToFillSize:(CGSize)size
+{
+    CGFloat scale = MAX(size.width/image.size.width, size.height/image.size.height);
+    CGFloat width = image.size.width * scale;
+    CGFloat height = image.size.height * scale;
+    CGRect imageRect = CGRectMake((size.width - width)/2.0f,
+                                  (size.height - height)/2.0f,
+                                  width,
+                                  height);
+    
+    UIGraphicsBeginImageContextWithOptions(size, NO, 0);
+    [image drawInRect:imageRect];
+    UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
+    UIGraphicsEndImageContext();
+    return newImage;
+}
+
++ (NSData*)bitmapToArray:(UIImage*) bmp
+{
+    CGDataProviderRef provider = CGImageGetDataProvider(bmp.CGImage);
+    NSData* data = (id)CFBridgingRelease(CGDataProviderCopyData(provider));
+    return data;
+}
+
+/**
+ **Raster Image - $1D $76 $30 m xL xH yL yH d1...dk
+ Prints a raster image
+ 
+ Format:
+ Hex       $1D  $76 30  m xL xH yL yH d1...dk
+ 
+ ASCII     GS   v   %   m xL xH yL yH d1...dk
+ 
+ Decimal   29  118  48  m xL xH yL yH d1...dk
+ 
+ Notes:
+ When ​standard mode​ is enabled, this command is only executed when there is no data in the print buffer. (Line is empty)
+ The defined data (​d​) defines each byte of the raster image. Each bit in every byte defines a pixel. A bit set to 1 is printed and a bit set to 0 is not printed.
+ If a raster bit image exceeds one line, the excess data is not printed.
+ This command feeds as much paper as is required to print the entire raster bit image, regardless of line spacing defined by 1/6” or 1/8” commands.
+ After the raster bit image is printed, the print position goes to the beginning of the line.
+ The following commands have no effect on a raster bit image:
+ Emphasized
+ Double Strike
+ Underline
+ White/Black Inverse Printing
+ Upside-Down Printing
+ Rotation
+ Left margin
+ Print Area Width
+ A raster bit image data is printed in the following order:
+ d1    d2    …    dx
+ dx + 1    dx + 2    …    dx * 2
+ .    .    .    .
+ …    dk - 2    dk - 1    dk
+ Defines and prints a raster bit image using the mode specified by ​m​:
+ m    Mode    Width Scalar    Heigh Scalar
+ 0, 48    Normal    x1    x1
+ 1, 49    Double Width    x2    x1
+ 2, 50    Double Height    x1    x2
+ 3, 51    Double Width/Height    x2    x2
+ xL, xH ​defines the raster bit image in the horizontal direction in ​bytes​ using two-byte number definitions. (​xL + (xH * 256)) Bytes
+ yL, yH ​defines the raster bit image in the vertical direction in ​dots​ using two-byte number definitions. (​yL + (yH * 256)) Dots
+ d ​ specifies the bit image data in raster format.
+ k ​indicates the number of bytes in the bit image. ​k ​is not transmitted and is there for explanation only.
+ **/
++ (NSData *)eachLinePixToCmd:(unsigned char *)src nWidth:(NSInteger) nWidth nHeight:(NSInteger) nHeight nMode:(NSInteger) nMode
+{
+    NSLog(@"SIZE OF SRC: %lu",sizeof(&src));
+    NSInteger nBytesPerLine = (int)nWidth/8;
+    unsigned char * data = malloc(nHeight*(8+nBytesPerLine));
+   // const char* srcData = (const char*)[src bytes];
+    NSInteger k = 0;
+   // NSMutableString *toLog = [[NSMutableString alloc] init];
+    for(int i=0;i<nHeight;i++){
+        NSInteger var10 = i*(8+nBytesPerLine);
+         //GS v 0 m xL xH yL yH d1....dk 打印光栅位图
+                data[var10 + 0] = 29;//GS
+                data[var10 + 1] = 118;//v
+                data[var10 + 2] = 48;//0
+                data[var10 + 3] =  (unsigned char)(nMode & 1);
+                data[var10 + 4] =  (unsigned char)(nBytesPerLine % 256);//xL
+                data[var10 + 5] =  (unsigned char)(nBytesPerLine / 256);//xH
+                data[var10 + 6] = 1;//yL
+                data[var10 + 7] = 0;//yH
+//        for(int l=0;l<8;l++){
+//            NSInteger d =data[var10 + l];
+//            [toLog appendFormat:@"%ld,",(long)d];
+//        }
+        
+        for (int j = 0; j < nBytesPerLine; ++j) {
+            data[var10 + 8 + j] = (int) (p0[src[k]] + p1[src[k + 1]] + p2[src[k + 2]] + p3[src[k + 3]] + p4[src[k + 4]] + p5[src[k + 5]] + p6[src[k + 6]] + src[k + 7]);
+            k =k+8;
+             //  [toLog appendFormat:@"%ld,",(long)data[var10+8+j]];
+        }
+       // [toLog appendString:@"\n\r"];
+    }
+   // NSLog(@"line datas: %@",toLog);
+    return [NSData dataWithBytes:data length:nHeight*(8+nBytesPerLine)];
+}
+
++(unsigned char *)format_K_threshold:(unsigned char *) orgpixels
+                        width:(NSInteger) xsize height:(NSInteger) ysize
+{
+    unsigned char * despixels = malloc(xsize*ysize);
+    int graytotal = 0;
+    int k = 0;
+    
+    int i;
+    int j;
+    int gray;
+    for(i = 0; i < ysize; ++i) {
+        for(j = 0; j < xsize; ++j) {
+            gray = orgpixels[k] & 255;
+            graytotal += gray;
+            ++k;
+        }
+    }
+    
+    int grayave = graytotal / ysize / xsize;
+    k = 0;
+   // NSMutableString *logStr = [[NSMutableString alloc]init];
+   // int oneCount = 0;
+    for(i = 0; i < ysize; ++i) {
+        for(j = 0; j < xsize; ++j) {
+            gray = orgpixels[k] & 255;
+            if(gray > grayave) {
+                despixels[k] = 0;
+            } else {
+                despixels[k] = 1;
+               // oneCount++;
+            }
+            
+            ++k;
+           // [logStr appendFormat:@"%d,",despixels[k]];
+        }
+    }
+   // NSLog(@"despixels [with 1 count:%d]: %@",oneCount,logStr);
+    return despixels;
+}
++(NSData *)pixToTscCmd:(uint8_t *)src width:(NSInteger) width
+{
+    int length = (int)width/8;
+    uint8_t * data = malloc(length);
+    int k = 0;
+    for(int j = 0;k<length;++k){
+        data[k] =(uint8_t)(p0[src[j]] + p1[src[j + 1]] + p2[src[j + 2]] + p3[src[j + 3]] + p4[src[j + 4]] + p5[src[j + 5]] + p6[src[j + 6]] + src[j + 7]);
+        j+=8;
+    }
+    return [[NSData alloc] initWithBytes:data length:length];
+}
+
+@end

ios/PrintColumnBleWriteDelegate.h

@@ -0,0 +1,25 @@
+//
+//  PrintColumnBleWriteDelegate.h
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/6.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+#import <React/RCTBridgeModule.h>
+#import "RNBluetoothManager.h"
+#import "RNBluetoothEscposPrinter.h"
+
+@interface PrintColumnBleWriteDelegate:NSObject<WriteDataToBleDelegate>
+@property NSInteger now;
+@property Boolean error;
+@property RCTPromiseResolveBlock pendingResolve;
+@property RCTPromiseRejectBlock pendingReject;
+@property RNBluetoothEscposPrinter *printer;
+@property Boolean canceled;
+@property NSString *encodig;
+@property NSInteger codePage;
+@property NSInteger widthTimes;
+@property NSInteger heightTimes;
+@property NSInteger fontType;
+-(void)printColumn:(NSMutableArray<NSMutableString *> *) columnsToPrint withMaxcount:(NSInteger)maxcount;
+@end

ios/PrintColumnBleWriteDelegate.m

@@ -0,0 +1,53 @@
+//
+//  PrintColumnBleWriteDelegate.m
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/6.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import "PrintColumnBleWriteDelegate.h"
+@implementation PrintColumnBleWriteDelegate
+
+NSMutableArray<NSMutableString *>  *columns;
+NSInteger maxRowCount;
+
+- (void)didWriteDataToBle:(BOOL)success {NSLog(@"Call back deletgate: %lu",_now+1);
+    if(_canceled){
+           if(_pendingReject) _pendingReject(@"ERROR_IN_PRINT_COLUMN",@"ERROR_IN_PRINT_COLUMN",nil);
+        return;
+    }
+    _now = _now+1;
+    if(_now >= maxRowCount){
+        if(_error && _pendingReject){
+            _pendingReject(@"ERROR_IN_PRINT_COLUMN",@"ERROR_IN_PRINT_COLUMN",nil);
+        }else if(_pendingResolve){
+            _pendingResolve(nil);
+        }
+    }else{
+        if(!success){
+            _error = true;
+        }
+        [self print];
+    }
+    [NSThread sleepForTimeInterval:0.05f];//slow down.
+}
+-(void)printColumn:( NSMutableArray<NSMutableString *> *)columnsToPrint withMaxcount:(NSInteger)maxcount{
+    columns = columnsToPrint;
+    maxRowCount = maxcount;
+    [self print];
+}
+-(void)print{
+    [(NSMutableString *)[columns objectAtIndex:_now] appendString:@"\n\r"];//wrap line..
+    @try {
+        [self.printer textPrint:[columns objectAtIndex:_now] inEncoding:_encodig withCodePage:_codePage widthTimes:_widthTimes heightTimes:_heightTimes fontType:_fontType delegate:self];
+    }
+    @catch (NSException *e){
+        NSLog(@"ERROR IN PRINTING COLUMN:%@",e);
+        _pendingReject(@"ERROR_IN_PRINT_COLUMN",@"ERROR_IN_PRINT_COLUMN",nil);
+        self.canceled = true;
+    }
+}
+
+@end;

ios/PrintImageBleWriteDelegate.h

@@ -0,0 +1,19 @@
+//
+//  PrintImageBleWriteDelegate.h
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/8.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+#import <React/RCTBridgeModule.h>
+#import "RNBluetoothManager.h"
+#import "RNBluetoothEscposPrinter.h"
+@interface PrintImageBleWriteDelegate :NSObject<WriteDataToBleDelegate>
+@property NSData *toPrint;
+@property NSInteger width;
+@property NSInteger now;
+@property RNBluetoothManager *printer;
+@property RCTPromiseRejectBlock pendingReject;
+@property RCTPromiseResolveBlock pendingResolve;
+-(void) print;
+@end

ios/PrintImageBleWriteDelegate.m

@@ -0,0 +1,61 @@
+//
+//  PrintImageBleWriteDelegate.m
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/8.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import "PrintImageBleWriteDelegate.h"
+@implementation PrintImageBleWriteDelegate
+
+
+- (void) didWriteDataToBle: (BOOL)success
+{NSLog(@"PrintImageBleWriteDelete diWriteDataToBle: %d",success?1:0);
+    if(success){
+        if(_now == -1){
+             if(_pendingResolve) {_pendingResolve(nil); _pendingResolve=nil;}
+        }else if(_now>=[_toPrint length]){
+//            ASCII ESC M 0 CR LF
+//            Hex 1B 4D 0 0D 0A
+//            Decimal 27 77 0 13 10
+            unsigned char * initPrinter = malloc(5);
+            initPrinter[0]=27;
+            initPrinter[1]=77;
+            initPrinter[2]=0;
+            initPrinter[3]=13;
+            initPrinter[4]=10;
+            [RNBluetoothManager writeValue:[NSData dataWithBytes:initPrinter length:5] withDelegate:self];
+            _now = -1;
+            [NSThread sleepForTimeInterval:0.01f];
+        }else {
+            [self print];
+        }
+    }else if(_pendingReject){
+        _pendingReject(@"PRINT_IMAGE_FAILED",@"PRINT_IMAGE_FAILED",nil);
+        _pendingReject = nil;
+    }
+    
+}
+
+-(void) print
+{
+    @synchronized (self) {
+     NSInteger sizePerLine = (int)(_width/8);
+   // do{
+//        if(sizePerLine+_now>=[_toPrint length]){
+//            sizePerLine = [_toPrint length] - _now;
+//        }
+       // if(sizePerLine>0){
+            NSData *subData = [_toPrint subdataWithRange:NSMakeRange(_now, sizePerLine)];
+            NSLog(@"Write data:%@",subData);
+            [RNBluetoothManager writeValue:subData withDelegate:self];
+        //}
+        _now = _now+sizePerLine;
+        [NSThread sleepForTimeInterval:0.01f];
+        
+    }
+    //}while(_now<[_toPrint length]);
+}
+@end

ios/RNBluetoothEscposPrinter.h

@@ -0,0 +1,16 @@
+
+#import <React/RCTBridgeModule.h>
+#import "RNBluetoothManager.h";
+
+@interface RNBluetoothEscposPrinter : NSObject <RCTBridgeModule,WriteDataToBleDelegate>
+
+@property (nonatomic,assign) NSInteger deviceWidth;
+-(void) textPrint:(NSString *) text
+       inEncoding:(NSString *) encoding
+     withCodePage:(NSInteger) codePage
+       widthTimes:(NSInteger) widthTimes
+      heightTimes:(NSInteger) heightTimes
+         fontType:(NSInteger) fontType
+         delegate:(NSObject<WriteDataToBleDelegate> *) delegate;
+@end
+  

ios/RNBluetoothEscposPrinter.m

@@ -0,0 +1,626 @@
+
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+#import "RNBluetoothManager.h"
+#import "RNBluetoothEscposPrinter.h"
+#import "ColumnSplitedString.h"
+#import "PrintColumnBleWriteDelegate.h"
+#import "ImageUtils.h"
+#import "ZXingObjC/ZXingObjC.h"
+#import "PrintImageBleWriteDelegate.h"
+@implementation RNBluetoothEscposPrinter
+
+int WIDTH_58 = 384;
+int WIDTH_80 = 576;
+Byte ESC[] = {0x1b};
+//NSInteger ESC = 0x1b;
+Byte ESC_FS[] = {0x1c};
+//NSInteger FS = 0x1C;
+Byte ESC_GS[] = {0x1D};
+Byte US[] = {0x1F};
+Byte DLE[] = {0x10};
+Byte DC4[] = {0x14};
+Byte DC1[] = {0x11};
+Byte SP[] = {0x20};
+Byte NL[] = {0x0A};
+Byte FF[] = {0x0C};
+Byte PIECE[] = {0xFF};
+Byte NUL[] =  {0x00};
+Byte SIGN[] = {0x21};//!
+Byte T[] = {0x74};//t
+Byte AND[] ={0x26}; //&
+Byte M[] = {0x4d};//M
+Byte V[] = {0x56};//V
+Byte A[] = {0x61};//a
+Byte E[] = {0x45};//E
+Byte G[] = {0x47};//G
+
+RCTPromiseResolveBlock pendingResolve;
+RCTPromiseRejectBlock pendingReject;
+
+-(id)init {
+    if (self = [super init])  {
+        self.deviceWidth = WIDTH_58;
+    }
+    return self;
+}
+
+
+- (dispatch_queue_t)methodQueue
+{
+    return dispatch_get_main_queue();
+}
++ (BOOL)requiresMainQueueSetup
+{
+    return YES;
+}
+
+
+/**
+ * Exports the constants to javascritp.
+ **/
+- (NSDictionary *)constantsToExport
+{
+    return @{ @"width58":[NSString stringWithFormat:@"%i", WIDTH_58],
+              @"width80":[NSString stringWithFormat:@"%i", WIDTH_80]};
+}
+
+RCT_EXPORT_MODULE(BluetoothEscposPrinter);
+
+/**
+ * Sets the current deivce width
+ **/
+RCT_EXPORT_METHOD(setWidth:(int) width)
+{
+    self.deviceWidth = width;
+}
+
+//public void printerInit(final Promise promise){
+//    if(sendDataByte(PrinterCommand.POS_Set_PrtInit())){
+//        promise.resolve(null);
+//    }else{
+//        promise.reject("COMMAND_NOT_SEND");
+//    }
+//}
+
+RCT_EXPORT_METHOD(printerInit:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject)
+{
+    if(RNBluetoothManager.isConnected){
+        NSMutableData *data = [[NSMutableData alloc] init];
+        Byte at[] = {'@'};
+        [data appendBytes:ESC length:1];
+        [data appendBytes:at length:1];
+        pendingResolve = resolve;
+        pendingReject = reject;
+        [RNBluetoothManager writeValue:data withDelegate:self];
+    }else{
+        reject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+    }
+    
+}
+
+//{GS, 'L', 0x00 , 0x00 }
+// data[2] = (byte) (left % 100);
+//data[3] = (byte) (left / 100);
+RCT_EXPORT_METHOD(printerLeftSpace:(int) sp
+                  withResolver:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject)
+{
+    if(sp>255 || sp<0){
+        reject(@"COMMAND_NOT_SEND",@"INVALID_VALUE",nil);
+        return;
+    }
+    
+    if(RNBluetoothManager.isConnected){
+        NSMutableData *data = [[NSMutableData alloc] init];
+        Byte left[] = {'L'};
+        Byte sp_up[] = {(sp%100)};
+        Byte sp_down[] = {(sp/100)};
+        [data appendBytes:ESC_GS length:1];
+        [data appendBytes:left length:1];
+        [data appendBytes:sp_up length:1];
+        [data appendBytes:sp_down length:1];
+        pendingResolve = resolve;
+        pendingReject = reject;
+        [RNBluetoothManager writeValue:data withDelegate:self];
+    }else{
+        reject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+    }
+}
+
+//{ESC, 45, 0x00 };
+//{FS, 45, 0x00 };
+RCT_EXPORT_METHOD(printerUnderLine:(int)sp withResolver:(RCTPromiseResolveBlock) resolve
+                  rejecter:(RCTPromiseRejectBlock) reject)
+{
+    if(sp<0 || sp>2){
+          reject(@"COMMAND_NOT_SEND",@"INVALID_VALUE",nil);
+        return;
+    }
+    if(RNBluetoothManager.isConnected){
+        NSMutableData *data = [[NSMutableData alloc] init];
+        Byte under_line[] = {45};
+        Byte spb[] = {sp};
+        [data appendBytes:ESC length:1];
+        [data appendBytes:under_line length:1];
+        [data appendBytes:spb length:1];
+        [data appendBytes:ESC_FS length:1];
+        [data appendBytes:under_line length:1];
+        [data appendBytes:spb length:1];
+        pendingResolve = resolve;
+        pendingReject = reject;
+        [RNBluetoothManager writeValue:data withDelegate:self];
+    }else{
+        reject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+    }
+    
+}
+
+RCT_EXPORT_METHOD(printText:(NSString *) text withOptions:(NSDictionary *) options
+                  resolver:(RCTPromiseResolveBlock) resolve rejecter:(RCTPromiseRejectBlock) reject)
+{NSLog(@"printing text...with options: %@",options);
+    if(!RNBluetoothManager.isConnected){
+          reject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+    }else{
+        @try{
+    //encoding:'GBK',
+    //codepage:0,
+    //widthtimes:0,
+    //heigthtimes:0,
+    //fonttype:1
+        NSString *encodig = [options valueForKey:@"encoding"];
+        if(!encodig) encodig=@"GBK";
+            NSInteger codePage = [[options valueForKey:@"codepage"] integerValue];NSLog(@"Got codepage from options: %ld",codePage);
+        if(!codePage) codePage = 0;
+        NSInteger widthTimes = [[options valueForKey:@"widthtimes"] integerValue];
+        if(!widthTimes) widthTimes = 0;
+        NSInteger heigthTime = [[options valueForKey:@"heigthtimes"] integerValue];
+        if(!heigthTime) heigthTime =0;
+        NSInteger fontType = [[options valueForKey:@"fontType"] integerValue];
+        if(!fontType) fontType = 0;
+            pendingResolve = resolve;
+            pendingReject = reject;
+            [self textPrint:text inEncoding:encodig withCodePage:codePage widthTimes:widthTimes heightTimes:heigthTime fontType:fontType delegate:self];
+        }
+        @catch (NSException *e){
+            NSLog(@"print text exception: %@",e);
+            reject(e.name.description,e.name.description,nil);
+        }
+    }
+}
+-(NSStringEncoding) toNSEncoding:(NSString *)encoding
+{NSLog(@"encoding: %@",encoding);
+    NSStringEncoding nsEncoding = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000);
+    if([@"UTF-8" isEqualToString:encoding] || [@"utf-8" isEqualToString:encoding] ){
+        nsEncoding = NSUTF8StringEncoding;
+    }
+    
+    return nsEncoding;
+}
+-(void) textPrint:(NSString *) text
+       inEncoding:(NSString *) encoding
+     withCodePage:(NSInteger) codePage
+       widthTimes:(NSInteger) widthTimes
+      heightTimes:(NSInteger) heightTimes
+         fontType:(NSInteger) fontType
+     delegate:(NSObject<WriteDataToBleDelegate> *) delegate
+{
+    Byte *intToWidth[] = {0x00, 0x10, 0x20, 0x30};
+    Byte *intToHeight[] = {0x00, 0x01, 0x02, 0x03};
+    Byte *multTime[] = {intToWidth[widthTimes],intToHeight[heightTimes]};
+    NSData *bytes = [text dataUsingEncoding:[self toNSEncoding:encoding]];
+    NSLog(@"Got bytes length:%lu",[bytes length]);
+    
+    NSMutableData *toSend = [[NSMutableData alloc] init];
+    
+    //gsExclamationMark:{GS, '!', 0x00 };
+    [toSend appendBytes:ESC_GS length:sizeof(ESC_GS)];
+    [toSend appendBytes:SIGN length:sizeof(SIGN)];
+    [toSend appendBytes:multTime length:sizeof(multTime)];
+    //escT:  {ESC, 't', 0x00 };
+    [toSend appendBytes:ESC length:sizeof(ESC)];
+    [toSend appendBytes:T length:sizeof(T)];
+    [toSend appendBytes:&codePage length:sizeof(codePage)];NSLog(@"codepage: %lu",codePage);
+    if(codePage == 0){
+        //FS_and :{FS, '&' };
+        [toSend appendBytes:ESC_FS length:sizeof(ESC_FS)];
+        [toSend appendBytes:AND length:sizeof(AND)];
+    }else{NSLog(@"{FS,46}");
+        //FS_dot: {FS, 46 };
+        NSInteger fourtySix= 46;
+        [toSend appendBytes:ESC_FS length:sizeof(ESC_FS)];
+        [toSend appendBytes:&fourtySix length:sizeof(fourtySix)];
+    }
+//    escM:{ESC, 'M', 0x00 };
+    [toSend appendBytes:ESC length:sizeof(ESC)];
+    [toSend appendBytes:M length:sizeof(M)];
+    [toSend appendBytes:&fontType length:sizeof(fontType)];
+    // text data
+    [toSend appendData:bytes];
+    //LF
+   // [toSend appendBytes:&NL length:sizeof(NL)];
+  
+    NSLog(@"Goting to write text : %@",text);
+    NSLog(@"With data: %@",toSend);
+    [RNBluetoothManager writeValue:toSend withDelegate:delegate];
+}
+
+RCT_EXPORT_METHOD(rotate:(NSInteger *)rotate
+                  withResolver:(RCTPromiseResolveBlock) resolve rejecter:(RCTPromiseRejectBlock) reject)
+{
+    if(RNBluetoothManager.isConnected){
+        //    //取消/选择90度旋转打印
+       // public static byte[] ESC_V = new byte[] {ESC, 'V', 0x00 };
+        NSMutableData *data = [[NSMutableData alloc] init];
+        Byte rotateBytes[] = {(int)rotate};
+        [data appendBytes:ESC length:1];
+        [data appendBytes:V length:1];
+        [data appendBytes:rotateBytes length:1];
+        pendingReject = reject;
+        pendingResolve = resolve;
+        [RNBluetoothManager writeValue:data withDelegate:self];
+    }else{
+           reject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+    }
+//        if(sendDataByte(PrinterCommand.POS_Set_Rotate(rotate))){
+//            promise.resolve(null);
+//        }else{
+//            promise.reject("COMMAND_NOT_SEND");
+//        }
+}
+
+RCT_EXPORT_METHOD(printerAlign:(NSInteger *) align
+                   withResolver:(RCTPromiseResolveBlock) resolve rejecter:(RCTPromiseRejectBlock) reject)
+{
+    if(RNBluetoothManager.isConnected){
+        //if ((align < 0 || align > 2) && (align < 48 || align > 50)) return null;
+        if((align < 0 || align > 2) && (align < 48 || align > 50)){
+             reject(@"INVALD_PARAMETERS",@"INVALD_PARAMETERS",nil);
+        }else{
+            //{ESC, 'a', 0x00 }
+            NSMutableData *toSend = [[NSMutableData alloc] init];
+            [toSend appendBytes:ESC length:sizeof(ESC)];
+            [toSend appendBytes:A length:sizeof(A)];
+            [toSend appendBytes:&align length:sizeof(align)];
+            pendingReject =reject;
+            pendingResolve =resolve;
+            [RNBluetoothManager writeValue:toSend withDelegate:self];
+        }
+    }else{
+         reject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+    }
+}
+
+RCT_EXPORT_METHOD(printColumn:(NSArray *)columnWidths
+                  withAligns:(NSArray *) columnAligns
+                  texts:(NSArray *) columnTexts
+                  options:(NSDictionary *)options
+                  resolver:(RCTPromiseResolveBlock) resolve
+                  rejecter:(RCTPromiseRejectBlock) reject)
+{
+    if(!RNBluetoothManager.isConnected){
+        reject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+    }else{
+        @try{
+            NSString *encodig = [options valueForKey:@"encoding"];
+            if(!encodig) encodig=@"GBK";
+            NSInteger codePage = [[options valueForKey:@"codepage"] integerValue];NSLog(@"Got codepage from options: %ld",codePage);
+            if(!codePage) codePage = 0;
+            NSInteger widthTimes = [[options valueForKey:@"widthtimes"] integerValue];
+            if(!widthTimes) widthTimes = 0;
+            NSInteger heigthTime = [[options valueForKey:@"heigthtimes"] integerValue];
+            if(!heigthTime) heigthTime =0;
+            NSInteger fontType = [[options valueForKey:@"fontType"] integerValue];
+            if(!fontType) fontType = 0;
+          /**
+                 * [column1-1,
+                 * column1-2,
+                 * column1-3 ... column1-n]
+                 * ,
+                 *  [column2-1,
+                 * column2-2,
+                 * column2-3 ... column2-n]
+                 *
+                 * ...
+                 *
+                 */
+            NSMutableArray *table =[[NSMutableArray alloc] init];
+            
+                /**splits the column text to few rows and applies the alignment **/
+                int padding = 1;
+                for(int i=0;i< [columnWidths count];i++){
+                    NSInteger width =[[columnWidths objectAtIndex:i ] integerValue] - padding;//1 char padding
+                    NSString *text = [columnTexts objectAtIndex:i]; //String.copyValueOf(columnTexts.getString(i).toCharArray());
+                    NSLog(@"Text in column: %@",text);
+                    NSMutableArray<ColumnSplitedString *> *splited = [[NSMutableArray alloc] init];
+                    //List<ColumnSplitedString> splited = new ArrayList<ColumnSplitedString>();
+                    int shorter = 0;
+                    int counter = 0;
+                   NSMutableString *temp = [[NSMutableString alloc] init];
+                   
+                    for(int c=0;c<[text length];c++){
+                        unichar ch = [text characterAtIndex:c];
+                        int l = (ch>= 0x4e00 && ch <= 0x9fff)?2:1;
+                        if (l==2){
+                            shorter=shorter+1;
+                        }
+                        [temp appendString:[text substringWithRange:NSMakeRange(c, 1)]];
+                        if(counter+l<width){
+                            counter = counter+l;
+                        }else{
+                            ColumnSplitedString *css = [[ColumnSplitedString alloc] init];
+                            css.str = temp;
+                            css.shorter = shorter;
+                            [splited addObject:css];
+                            temp = [[NSMutableString alloc] init];
+                            counter=0;
+                            shorter=0;
+                        }
+                    }
+                    if([temp length]>0) {
+                        ColumnSplitedString *css = [[ColumnSplitedString alloc] init];
+                        css.str = temp;
+                        css.shorter = shorter;
+                        [splited addObject:css];
+                    }
+                    NSInteger align =[[columnAligns objectAtIndex:i] integerValue];
+            
+                    NSMutableArray *formated = [[NSMutableArray alloc] init];
+                    for(ColumnSplitedString *s in splited){
+                        NSMutableString *empty = [[NSMutableString alloc] init];
+                        for(int w=0;w<(width+padding-s.shorter);w++){
+                            [empty appendString:@" "];
+                        }
+                        int startIdx = 0;
+                        NSString *ss = s.str;
+                        if(align == 1 && [ss length]<(width-s.shorter)){
+                            startIdx = (int)(width-s.shorter-[ss length])/2;
+                            if(startIdx+[ss length]>width-s.shorter){
+                                startIdx--;
+                            }
+                            if(startIdx<0){
+                                startIdx=0;
+                            }
+                        }else if(align==2 && [ss length]<(width-s.shorter)){
+                            startIdx =(int)(width - s.shorter-[ss length]);
+                        }
+                        NSInteger length =[ss length];
+//                        if(length+startIdx>[empty length]){
+//                            length = [empty length]-startIdx;
+//                        }
+                        NSLog(@"empty(length: %lu) replace from %d length %lu with str:%@)",[empty length],startIdx,length,ss);
+                        [empty replaceCharactersInRange:NSMakeRange(startIdx, length) withString:ss];
+                        [formated addObject:empty];
+                    }
+                    [table addObject:formated];
+                }
+            
+            /**  try to find the max row count of the table **/
+                NSInteger maxRowCount = 0;
+                for(int i=0;i<[table count]/*column count*/;i++){
+                    NSArray *rows = [table objectAtIndex:i]; // row data in current column
+                    if([rows count]>maxRowCount){
+                        maxRowCount = [rows count];// try to find the max row count;
+                    }
+                }
+            
+                /** loop table again to fill the rows **/
+            NSMutableArray<NSMutableString *> *rowsToPrint = [[NSMutableArray alloc] init];
+                for(int column=0;column<[table count]/*column count*/;column++){
+                    NSArray *rows = [table objectAtIndex:column]; // row data in current column
+                    for(int row=0;row<maxRowCount;row++){
+                        if([rowsToPrint count]<=row || [rowsToPrint objectAtIndex:row] ==nil){
+                           [rowsToPrint setObject:[[NSMutableString alloc] init] atIndexedSubscript:row];
+                        }
+                        if(row<[rows count]){
+                            //got the row of this column
+                            [(NSMutableString *)[rowsToPrint objectAtIndex:row] appendString:[rows objectAtIndex:row]];//.append(rows.get(row));
+                        }else{
+                            NSInteger w = [[columnWidths objectAtIndex:column] integerValue]; //columnWidths.getInt(column);
+                            NSMutableString *empty = [[NSMutableString alloc] init];
+                            for(int i=0;i<w;i++){
+                                [empty appendString:@" "]; //empty.append(" ");
+                            }
+                             [(NSMutableString *)[rowsToPrint objectAtIndex:row] appendString:empty];//Append spaces to ensure the format
+                        }
+                    }
+                }
+            
+                /** loops the rows and print **/
+            PrintColumnBleWriteDelegate *delegate = [[PrintColumnBleWriteDelegate alloc] init];
+            delegate.now = 0;
+            delegate.error = false;
+            delegate.pendingReject = reject;
+            delegate.pendingResolve =resolve;
+            delegate.canceled = false;
+            delegate.encodig = encodig;
+            delegate.widthTimes = widthTimes;
+            delegate.heightTimes = heigthTime;
+            delegate.fontType = fontType;
+            delegate.codePage = codePage;
+            delegate.printer = self;
+            [delegate printColumn:rowsToPrint withMaxcount:maxRowCount];
+        }
+        @catch(NSException *e){
+            NSLog(@"print text exception: %@",[e callStackSymbols]);
+            reject(e.name.description,e.name.description,nil);
+        }
+        
+    }
+}
+
+RCT_EXPORT_METHOD(setBlob:(NSInteger) sp
+                  withResolver:(RCTPromiseResolveBlock) resolve
+                  rejecter:(RCTPromiseRejectBlock) reject)
+{
+    //\\    //选择/取消加粗指令
+//    public static byte[] ESC_G = new byte[] {ESC, 'G', 0x00 };
+//    public static byte[] ESC_E = new byte[] {ESC, 'E', 0x00 };
+    //E+G
+    NSMutableData *toSend = [[NSMutableData alloc] init];
+    [toSend appendBytes:&ESC length:sizeof(ESC)];
+    [toSend appendBytes:&G length:sizeof(G)];
+    [toSend appendBytes:&sp length:sizeof(sp)];
+    [toSend appendBytes:&ESC length:sizeof(ESC)];
+    [toSend appendBytes:&E length:sizeof(E)];
+    [toSend appendBytes:&sp length:sizeof(sp)];
+    pendingReject =reject;
+    pendingResolve = resolve;
+    [RNBluetoothManager writeValue:toSend withDelegate:self];
+}
+
+RCT_EXPORT_METHOD(printPic:(NSString *) base64encodeStr withOptions:(NSDictionary *) options
+                  resolver:(RCTPromiseResolveBlock) resolve
+                  rejecter:(RCTPromiseRejectBlock) reject)
+{
+    if(RNBluetoothManager.isConnected){
+        @try{
+            NSInteger nWidth = [[options valueForKey:@"width"] integerValue];
+            if(!nWidth) nWidth = _deviceWidth;
+            //TODO:need to handel param "left" in the options.
+            NSInteger paddingLeft = [[options valueForKey:@"left"] integerValue];
+            if(!paddingLeft) paddingLeft = 0;
+            NSData *decoded = [[NSData alloc] initWithBase64EncodedString:base64encodeStr options:0 ];
+            UIImage *srcImage = [[UIImage alloc] initWithData:decoded scale:1];
+            NSData *jpgData = UIImageJPEGRepresentation(srcImage, 1);
+            UIImage *jpgImage = [[UIImage alloc] initWithData:jpgData];
+            //mBitmap.getHeight() * width / mBitmap.getWidth();
+            NSInteger imgHeight = jpgImage.size.height;
+            NSInteger imagWidth = jpgImage.size.width;
+            NSInteger width = nWidth;//((int)(((nWidth*0.86)+7)/8))*8-7;
+            CGSize size = CGSizeMake(width, imgHeight*width/imagWidth);
+            UIImage *scaled = [ImageUtils imageWithImage:jpgImage scaledToFillSize:size];
+            if(paddingLeft>0){
+                scaled = [ImageUtils imagePadLeft:paddingLeft withSource:scaled];
+                size =[scaled size];
+            }
+            
+            unsigned char * graImage = [ImageUtils imageToGreyImage:scaled];
+            unsigned char * formatedData = [ImageUtils format_K_threshold:graImage width:size.width height:size.height];
+            NSData *dataToPrint = [ImageUtils eachLinePixToCmd:formatedData nWidth:size.width nHeight:size.height nMode:0];
+            PrintImageBleWriteDelegate *delegate = [[PrintImageBleWriteDelegate alloc] init];
+            delegate.pendingResolve = resolve;
+            delegate.pendingReject = reject;
+            delegate.width = width;
+            delegate.toPrint  = dataToPrint;
+            delegate.now = 0;
+            [delegate print];
+        }
+        @catch(NSException *e){
+            NSLog(@"ERROR IN PRINTING IMG: %@",[e callStackSymbols]);
+              reject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+        }
+    }else{
+        reject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+    }
+}
+
+RCT_EXPORT_METHOD(printQRCode:(NSString *)content
+                  withSize:(NSInteger) size
+                  correctionLevel:(NSInteger) correctionLevel
+                  andResolver:(RCTPromiseResolveBlock) resolve
+                  rejecter:(RCTPromiseRejectBlock) reject)
+{
+    NSLog(@"QRCODE TO PRINT: %@",content);
+    NSError *error = nil;
+    ZXEncodeHints *hints = [ZXEncodeHints hints];
+    hints.encoding=NSUTF8StringEncoding;
+    hints.margin=0;
+    hints.errorCorrectionLevel = [self findCorrectionLevel:correctionLevel];
+    
+    ZXMultiFormatWriter *writer = [ZXMultiFormatWriter writer];
+    ZXBitMatrix *result = [writer encode:content
+                                  format:kBarcodeFormatQRCode
+                                   width:(int)size
+                                  height:(int)size
+                                    hints:hints
+                                   error:&error];
+    if(error || !result){
+        reject(@"ERROR_IN_CREATE_QRCODE",@"ERROR_IN_CREATE_QRCODE",nil);
+    }else{
+        CGImageRef image = [[ZXImage imageWithMatrix:result] cgimage];
+        uint8_t * graImage = [ImageUtils imageToGreyImage:[UIImage imageWithCGImage:image]];
+        unsigned char * formatedData = [ImageUtils format_K_threshold:graImage width:size height:size];
+        NSData *dataToPrint = [ImageUtils eachLinePixToCmd:formatedData nWidth:size nHeight:size nMode:0];
+        PrintImageBleWriteDelegate *delegate = [[PrintImageBleWriteDelegate alloc] init];
+        delegate.pendingResolve=resolve;
+        delegate.pendingReject = reject;
+        delegate.width = size;
+        delegate.toPrint  = dataToPrint;
+        delegate.now = 0;
+        [delegate print];
+    }
+}
+
+RCT_EXPORT_METHOD(printBarCode:(NSString *) str withType:(NSInteger)
+                  nType width:(NSInteger) nWidth heigth:(NSInteger) nHeight
+                  hriFontType:(NSInteger) nHriFontType hriFontPosition:(NSInteger) nHriFontPosition
+                  andResolver:(RCTPromiseResolveBlock) resolve
+                  rejecter:(RCTPromiseRejectBlock) reject)
+{
+    if (nType < 0x41 | nType > 0x49 | nWidth < 2 | nWidth > 6
+        | nHeight < 1 | nHeight > 255 | (!str||[str length]<1))
+      {
+          reject(@"INVALID_PARAMETER",@"INVALID_PARAMETER",nil);
+          return;
+      }
+    
+    NSData *conentData = [str dataUsingEncoding:CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000)];
+    NSMutableData *toPrint = [[NSMutableData alloc] init];
+    int8_t * command = malloc(16);
+        command[0] = 29 ;//GS
+        command[1] = 119;//W
+        command[2] = nWidth;
+        command[3] = 29;//GS
+        command[4] = 104;//h
+        command[5] = nHeight;
+        command[6] = 29;//GS
+        command[7] = 102;//f
+        command[8] = (nHriFontType & 0x01);
+        command[9] = 29;//GS
+        command[10] = 72;//H
+        command[11] = (nHriFontPosition & 0x03);
+        command[12] = 29;//GS
+        command[13] = 107;//k
+        command[14] = nType;
+        command[15] = [conentData length];
+    [toPrint appendBytes:command length:16];
+    [toPrint appendData:conentData];
+    
+    pendingReject = reject;
+    pendingResolve = resolve;
+    [RNBluetoothManager writeValue:toPrint withDelegate:self];
+}
+//  L:1,
+//M:0,
+//Q:3,
+//H:2
+-(ZXQRCodeErrorCorrectionLevel *)findCorrectionLevel:(NSInteger)level
+{
+    switch (level) {
+        case 1:
+            return [[ZXQRCodeErrorCorrectionLevel alloc] initWithOrdinal:0 bits:0x01 name:@"L"];
+            break;
+        case 2:
+             return [[ZXQRCodeErrorCorrectionLevel alloc] initWithOrdinal:3 bits:0x02 name:@"H"];
+        case 3:
+             return [[ZXQRCodeErrorCorrectionLevel alloc] initWithOrdinal:2 bits:0x03 name:@"Q"];
+        default:
+             return [[ZXQRCodeErrorCorrectionLevel alloc] initWithOrdinal:1 bits:0x00 name:@"M"];
+            break;
+    }
+}
+
+- (void) didWriteDataToBle: (BOOL)success{
+    if(success){
+        pendingResolve(nil);
+    }else{NSLog(@"REJECT<REJECT<REJECT<REJECT<REJECT<");
+        pendingReject(@"COMMAND_NOT_SEND",@"COMMAND_NOT_SEND",nil);
+    }
+    pendingReject = nil;
+    pendingResolve = nil;
+    [NSThread sleepForTimeInterval:0.05f];//slow down
+}
+
+@end

ios/RNBluetoothEscposPrinter.xcodeproj/project.pbxproj

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+			isa = PBXGroup;
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+			children = (
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+			);
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+			);
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+			productType = "com.apple.product-type.library.static";
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+		};
+/* End PBXReferenceProxy section */
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+/* Begin PBXSourcesBuildPhase section */
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+				B3E7B58A1CC2AC0600A0062D /* RNBluetoothEscposPrinter.m in Sources */,
+				83A1E92D216CF6C4004F0811 /* RNTscCommand.m in Sources */,
+				83B72B46216A0FEA007780F3 /* ColumnSplitedString.m in Sources */,
+				83B72B7C216A70D2007780F3 /* ImageUtils.m in Sources */,
+				83E5D47C215E57100009D216 /* RNBluetoothManager.m in Sources */,
+				83FAD6B12161C9C6001C4911 /* RNBluetoothTscPrinter.m in Sources */,
+				83A1E920216BA095004F0811 /* PrintImageBleWriteDelegate.m in Sources */,
+			);
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+					"$(inherited)",
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+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
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+				GCC_WARN_UNUSED_VARIABLE = YES;
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"$(SRCROOT)/../../../React/**",
+					"$(SRCROOT)/../../react-native/React/**",
+					"$(SRCROOT)/ZXingObjC-3.2.2/**",
+				);
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+			};
+			name = Debug;
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+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
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+				CLANG_WARN_INFINITE_RECURSION = YES;
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+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
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+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"$(SRCROOT)/../../../React/**",
+					"$(SRCROOT)/../../react-native/React/**",
+					"$(SRCROOT)/ZXingObjC-3.2.2/**",
+				);
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		58B511F01A9E6C8500147676 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"$(SRCROOT)/../../../React/**",
+					"$(SRCROOT)/../../react-native/React/**",
+				);
+				LIBRARY_SEARCH_PATHS = "$(inherited)";
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = RNBluetoothEscposPrinter;
+				SKIP_INSTALL = YES;
+			};
+			name = Debug;
+		};
+		58B511F11A9E6C8500147676 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				HEADER_SEARCH_PATHS = (
+					"$(inherited)",
+					/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include,
+					"$(SRCROOT)/../../../React/**",
+					"$(SRCROOT)/../../react-native/React/**",
+				);
+				LIBRARY_SEARCH_PATHS = "$(inherited)";
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = RNBluetoothEscposPrinter;
+				SKIP_INSTALL = YES;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		58B511D61A9E6C8500147676 /* Build configuration list for PBXProject "RNBluetoothEscposPrinter" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				58B511ED1A9E6C8500147676 /* Debug */,
+				58B511EE1A9E6C8500147676 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		58B511EF1A9E6C8500147676 /* Build configuration list for PBXNativeTarget "RNBluetoothEscposPrinter" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				58B511F01A9E6C8500147676 /* Debug */,
+				58B511F11A9E6C8500147676 /* Release */,
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+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 58B511D31A9E6C8500147676 /* Project object */;
+}

ios/RNBluetoothEscposPrinter.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

ios/RNBluetoothEscposPrinter.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

ios/RNBluetoothEscposPrinter.xcodeproj/xcuserdata/januslo.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>RNBluetoothEscposPrinter.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>4</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>

ios/RNBluetoothEscposPrinter.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,9 @@
+// !$*UTF8*$!
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:RNBluetoothEscposPrinter.xcodeproj">
+   </FileRef>
+</Workspace>
+  

ios/RNBluetoothManager.h

@@ -0,0 +1,29 @@
+//
+//  RNBluetoothManager.h
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/9/28.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+#import <React/RCTBridgeModule.h>
+#import <React/RCTEventEmitter.h>
+#import <CoreBluetooth/CoreBluetooth.h>
+
+@protocol WriteDataToBleDelegate <NSObject>
+@required
+- (void) didWriteDataToBle: (BOOL)success;
+@end
+
+@interface RNBluetoothManager <CBCentralManagerDelegate,CBPeripheralDelegate> : RCTEventEmitter <RCTBridgeModule>
+@property (strong, nonatomic) CBCentralManager      *centralManager;
+@property (nonatomic,copy) RCTPromiseResolveBlock scanResolveBlock;
+@property (nonatomic,copy) RCTPromiseRejectBlock scanRejectBlock;
+@property (strong,nonatomic) NSMutableDictionary <NSString *,CBPeripheral *> *foundDevices;
+@property (strong,nonatomic) NSString *waitingConnect;
+@property (nonatomic,copy) RCTPromiseResolveBlock connectResolveBlock;
+@property (nonatomic,copy) RCTPromiseRejectBlock connectRejectBlock;
++(void)writeValue:(NSData *) data withDelegate:(NSObject<WriteDataToBleDelegate> *) delegate;
++(Boolean)isConnected;
+-(void)initSupportServices;
+-(void)callStop;
+@end

ios/RNBluetoothManager.m

@@ -0,0 +1,571 @@
+//
+//  RNBluethManager.m
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/9/28.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import "RNBluetoothManager.h"
+#import <CoreBluetooth/CoreBluetooth.h>
+@implementation RNBluetoothManager
+
+NSString *EVENT_DEVICE_ALREADY_PAIRED = @"EVENT_DEVICE_ALREADY_PAIRED";
+NSString *EVENT_DEVICE_DISCOVER_DONE = @"EVENT_DEVICE_DISCOVER_DONE";
+NSString *EVENT_DEVICE_FOUND = @"EVENT_DEVICE_FOUND";
+NSString *EVENT_CONNECTION_LOST = @"EVENT_CONNECTION_LOST";
+NSString *EVENT_UNABLE_CONNECT=@"EVENT_UNABLE_CONNECT";
+NSString *EVENT_CONNECTED=@"EVENT_CONNECTED";
+static NSArray<CBUUID *> *supportServices = nil;
+static NSDictionary *writeableCharactiscs = nil;
+bool hasListeners;
+static CBPeripheral *connected;
+static RNBluetoothManager *instance;
+static NSObject<WriteDataToBleDelegate> *writeDataDelegate;// delegate of write data resule;
+static NSData *toWrite;
+static NSTimer *timer;
+
++(Boolean)isConnected{
+    return !(connected==nil);
+}
+
++(void)writeValue:(NSData *) data withDelegate:(NSObject<WriteDataToBleDelegate> *) delegate
+{
+    @try{
+        writeDataDelegate = delegate;
+        toWrite = data;
+        connected.delegate = instance;
+        [connected discoverServices:supportServices];
+//    [connected writeValue:data forCharacteristic:[writeableCharactiscs objectForKey:supportServices[0]] type:CBCharacteristicWriteWithoutResponse];
+    }
+    @catch(NSException *e){
+        NSLog(@"error in writing data to %@,issue:%@",connected,e);
+        [writeDataDelegate didWriteDataToBle:false];
+    }
+}
+
+// Will be called when this module's first listener is added.
+-(void)startObserving {
+    hasListeners = YES;
+    // Set up any upstream listeners or background tasks as necessary
+}
+
+// Will be called when this module's last listener is removed, or on dealloc.
+-(void)stopObserving {
+    hasListeners = NO;
+    // Remove upstream listeners, stop unnecessary background tasks
+}
+
+/**
+ * Exports the constants to javascritp.
+ **/
+- (NSDictionary *)constantsToExport
+{
+    
+    /*
+     EVENT_DEVICE_ALREADY_PAIRED    Emits the devices array already paired
+     EVENT_DEVICE_DISCOVER_DONE    Emits when the scan done
+     EVENT_DEVICE_FOUND    Emits when device found during scan
+     EVENT_CONNECTION_LOST    Emits when device connection lost
+     EVENT_UNABLE_CONNECT    Emits when error occurs while trying to connect device
+     EVENT_CONNECTED    Emits when device connected
+     */
+
+    return @{ EVENT_DEVICE_ALREADY_PAIRED: EVENT_DEVICE_ALREADY_PAIRED,
+              EVENT_DEVICE_DISCOVER_DONE:EVENT_DEVICE_DISCOVER_DONE,
+              EVENT_DEVICE_FOUND:EVENT_DEVICE_FOUND,
+              EVENT_CONNECTION_LOST:EVENT_CONNECTION_LOST,
+              EVENT_UNABLE_CONNECT:EVENT_UNABLE_CONNECT,
+              EVENT_CONNECTED:EVENT_CONNECTED
+              };
+}
+- (dispatch_queue_t)methodQueue
+{
+    return dispatch_get_main_queue();
+}
+
++ (BOOL)requiresMainQueueSetup
+{
+    return YES;
+}
+
+/**
+ * Defines the event would be emited.
+ **/
+- (NSArray<NSString *> *)supportedEvents
+{
+    return @[EVENT_DEVICE_DISCOVER_DONE,
+             EVENT_DEVICE_FOUND,
+             EVENT_UNABLE_CONNECT,
+             EVENT_CONNECTION_LOST,
+             EVENT_CONNECTED,
+             EVENT_DEVICE_ALREADY_PAIRED];
+}
+
+
+RCT_EXPORT_MODULE(BluetoothManager);
+
+
+//isBluetoothEnabled
+RCT_EXPORT_METHOD(isBluetoothEnabled:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject)
+{
+    CBManagerState state = [self.centralManager  state];
+    resolve(state == CBManagerStatePoweredOn?@"true":@"false");//canot pass boolean or int value to resolve directly.
+}
+
+//enableBluetooth
+RCT_EXPORT_METHOD(enableBluetooth:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject)
+{
+    resolve(nil);
+}
+//disableBluetooth
+RCT_EXPORT_METHOD(disableBluetooth:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject)
+{
+    resolve(nil);
+}
+//scanDevices
+RCT_EXPORT_METHOD(scanDevices:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject)
+{
+    @try{
+        if(!self.centralManager || self.centralManager.state!=CBManagerStatePoweredOn){
+            reject(@"BLUETOOTCH_INVALID_STATE",@"BLUETOOTCH_INVALID_STATE",nil);
+            return;
+        }
+        if(self.centralManager.isScanning){
+            [self.centralManager stopScan];
+        }
+        self.scanResolveBlock = resolve;
+        self.scanRejectBlock = reject;
+        if(connected && connected.identifier){
+            NSDictionary *idAndName =@{@"address":connected.identifier.UUIDString,@"name":connected.name?connected.name:@""};
+            NSDictionary *peripheralStored = @{connected.identifier.UUIDString:connected};
+            if(!self.foundDevices){
+                self.foundDevices = [[NSMutableDictionary alloc] init];
+            }
+            [self.foundDevices addEntriesFromDictionary:peripheralStored];
+            if(hasListeners){
+                [self sendEventWithName:EVENT_DEVICE_FOUND body:@{@"device":idAndName}];
+            }
+        }
+        [self.centralManager scanForPeripheralsWithServices:nil options:@{CBCentralManagerScanOptionAllowDuplicatesKey:@NO}];
+        //Callbacks:
+        //centralManager:didDiscoverPeripheral:advertisementData:RSSI:
+        NSLog(@"Scanning started with services.");
+        if(timer && timer.isValid){
+            [timer invalidate];
+            timer = nil;
+        }
+        timer = [NSTimer scheduledTimerWithTimeInterval:30 target:self selector:@selector(callStop) userInfo:nil repeats:NO];
+    
+    }
+    @catch(NSException *exception){
+        NSLog(@"ERROR IN STARTING SCANE %@",exception);
+        reject([exception name],[exception name],nil);
+    }
+}
+
+//stop scan
+RCT_EXPORT_METHOD(stopScan:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject)
+{
+    [self callStop];
+    resolve(nil);
+}
+
+//connect(address)
+RCT_EXPORT_METHOD(connect:(NSString *)address
+                  findEventsWithResolver:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject)
+{
+    NSLog(@"Trying to connect....%@",address);
+    [self callStop];
+    if(connected){
+        NSString *connectedAddress =connected.identifier.UUIDString;
+        if([address isEqualToString:connectedAddress]){
+            resolve(nil);
+            return;
+        }else{
+            [self.centralManager cancelPeripheralConnection:connected];
+            //Callbacks:
+            //entralManager:didDisconnectPeripheral:error:
+        }
+    }
+    CBPeripheral *peripheral = [self.foundDevices objectForKey:address];
+    self.connectResolveBlock = resolve;
+    self.connectRejectBlock = reject;
+    if(peripheral){
+          _waitingConnect = address;
+          NSLog(@"Trying to connectPeripheral....%@",address);
+        [self.centralManager connectPeripheral:peripheral options:nil];
+        // Callbacks:
+        //    centralManager:didConnectPeripheral:
+        //    centralManager:didFailToConnectPeripheral:error:
+    }else{
+          //starts the scan.
+        _waitingConnect = address;
+         NSLog(@"Scan to find ....%@",address);
+        [self.centralManager scanForPeripheralsWithServices:nil options:@{CBCentralManagerScanOptionAllowDuplicatesKey:@NO}];
+        //Callbacks:
+        //centralManager:didDiscoverPeripheral:advertisementData:RSSI:
+    }
+}
+//unpaire(address)
+
+
+-(void)callStop{
+    if(self.centralManager.isScanning){
+        [self.centralManager stopScan];
+        NSMutableArray *devices = [[NSMutableArray alloc] init];
+        for(NSString *key in self.foundDevices){
+            NSLog(@"insert found devies:%@ =>%@",key,[self.foundDevices objectForKey:key]);
+            NSString *name = [self.foundDevices objectForKey:key].name;
+            if(!name){
+                name = @"";
+            }
+            [devices addObject:@{@"address":key,@"name":name}];
+        }
+        NSError *error = nil;
+        NSData* jsonData = [NSJSONSerialization dataWithJSONObject:devices options:NSJSONWritingPrettyPrinted error:&error];
+        NSString * jsonStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
+        if(hasListeners){
+            [self sendEventWithName:EVENT_DEVICE_DISCOVER_DONE body:@{@"found":jsonStr,@"paired":@"[]"}];
+        }
+        if(self.scanResolveBlock){
+            RCTPromiseResolveBlock rsBlock = self.scanResolveBlock;
+            rsBlock(@{@"found":jsonStr,@"paired":@"[]"});
+            self.scanResolveBlock = nil;
+        }
+    }
+    if(timer && timer.isValid){
+        [timer invalidate];
+        timer = nil;
+    }
+    self.scanRejectBlock = nil;
+    self.scanResolveBlock = nil;
+}
+- (void) initSupportServices
+{
+    if(!supportServices){
+        CBUUID *issc = [CBUUID UUIDWithString: @"49535343-FE7D-4AE5-8FA9-9FAFD205E455"];
+        supportServices = [NSArray arrayWithObject:issc];/*ISSC*/
+        writeableCharactiscs = @{issc:@"49535343-8841-43F4-A8D4-ECBE34729BB3"};
+    }
+}
+
+- (CBCentralManager *) centralManager
+{
+    @synchronized(_centralManager)
+    {
+        if (!_centralManager)
+        {
+            if (![CBCentralManager instancesRespondToSelector:@selector(initWithDelegate:queue:options:)])
+            {
+                //for ios version lowser than 7.0
+                self.centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil];
+            }else
+            {
+                self.centralManager = [[CBCentralManager alloc] initWithDelegate:self queue:nil options: nil];
+            }
+        }
+        if(!instance){
+            instance = self;
+        }
+    }
+    [self initSupportServices];
+    return _centralManager;
+}
+
+/**
+ * CBCentralManagerDelegate
+ **/
+- (void)centralManagerDidUpdateState:(CBCentralManager *)central{
+    NSLog(@"%ld",(long)central.state);
+}
+
+- (void)centralManager:(CBCentralManager *)central didDiscoverPeripheral:(CBPeripheral *)peripheral advertisementData:(NSDictionary<NSString *, id> *)advertisementData RSSI:(NSNumber *)RSSI{
+    NSLog(@"did discover peripheral: %@",peripheral);
+    NSDictionary *idAndName =@{@"address":peripheral.identifier.UUIDString,@"name":peripheral.name?peripheral.name:@""};
+    NSDictionary *peripheralStored = @{peripheral.identifier.UUIDString:peripheral};
+    if(!self.foundDevices){
+        self.foundDevices = [[NSMutableDictionary alloc] init];
+    }
+    [self.foundDevices addEntriesFromDictionary:peripheralStored];
+    if(hasListeners){
+        [self sendEventWithName:EVENT_DEVICE_FOUND body:@{@"device":idAndName}];
+    }
+    if(_waitingConnect && [_waitingConnect isEqualToString: peripheral.identifier.UUIDString]){
+        [self.centralManager connectPeripheral:peripheral options:nil];
+        [self callStop];
+    }
+}
+
+- (void)centralManager:(CBCentralManager *)central didConnectPeripheral:(CBPeripheral *)peripheral{
+    NSLog(@"did connected: %@",peripheral);
+    connected = peripheral;
+    NSString *pId = peripheral.identifier.UUIDString;
+    if(_waitingConnect && [_waitingConnect isEqualToString: pId] && self.connectResolveBlock){
+        NSLog(@"Predefined the support services, stop to looking up services.");
+//        peripheral.delegate=self;
+//        [peripheral discoverServices:nil];
+        self.connectResolveBlock(nil);
+        _waitingConnect = nil;
+        self.connectRejectBlock = nil;
+        self.connectResolveBlock = nil;
+    }
+       NSLog(@"going to emit EVENT_CONNECTED.");
+    if(hasListeners){
+        [self sendEventWithName:EVENT_CONNECTED body:@{@"device":@{@"name":peripheral.name?peripheral.name:@"",@"address":peripheral.identifier.UUIDString}}];
+    }
+}
+
+- (void)centralManager:(CBCentralManager *)central didDisconnectPeripheral:(CBPeripheral *)peripheral error:(nullable NSError *)error{
+    if(!connected && _waitingConnect && [_waitingConnect isEqualToString:peripheral.identifier.UUIDString]){
+        if(self.connectRejectBlock){
+            RCTPromiseRejectBlock rjBlock = self.connectRejectBlock;
+            rjBlock(@"",@"",error);
+            self.connectRejectBlock = nil;
+            self.connectResolveBlock = nil;
+            _waitingConnect=nil;
+        }
+        connected = nil;
+        if(hasListeners){
+            [self sendEventWithName:EVENT_UNABLE_CONNECT body:@{@"name":peripheral.name?peripheral.name:@"",@"address":peripheral.identifier.UUIDString}];
+        }
+    }else{
+        connected = nil;
+        if(hasListeners){
+            [self sendEventWithName:EVENT_CONNECTION_LOST body:nil];
+        }
+    }
+}
+
+- (void)centralManager:(CBCentralManager *)central didFailToConnectPeripheral:(CBPeripheral *)peripheral error:(nullable NSError *)error{
+    if(self.connectRejectBlock){
+        RCTPromiseRejectBlock rjBlock = self.connectRejectBlock;
+        rjBlock(@"",@"",error);
+        self.connectRejectBlock = nil;
+        self.connectResolveBlock = nil;
+        _waitingConnect = nil;
+    }
+    connected = nil;
+    if(hasListeners){
+        [self sendEventWithName:EVENT_UNABLE_CONNECT body:@{@"name":peripheral.name?peripheral.name:@"",@"address":peripheral.identifier.UUIDString}];
+    }
+    }
+
+/**
+ * END OF CBCentralManagerDelegate
+ **/
+
+/*!
+ *  @method peripheral:didDiscoverServices:
+ *
+ *  @param peripheral    The peripheral providing this information.
+ *    @param error        If an error occurred, the cause of the failure.
+ *
+ *  @discussion            This method returns the result of a @link discoverServices: @/link call. If the service(s) were read successfully, they can be retrieved via
+ *                        <i>peripheral</i>'s @link services @/link property.
+ *
+ */
+- (void)peripheral:(CBPeripheral *)peripheral didDiscoverServices:(nullable NSError *)error{
+    if (error){
+        NSLog(@"扫描外设服务出错：%@-> %@", peripheral.name, [error localizedDescription]);
+        return;
+    }
+    NSLog(@"扫描到外设服务：%@ -> %@",peripheral.name,peripheral.services);
+    for (CBService *service in peripheral.services) {
+        [peripheral discoverCharacteristics:nil forService:service];
+         NSLog(@"服务id：%@",service.UUID.UUIDString);
+    }
+    NSLog(@"开始扫描外设服务的特征 %@...",peripheral.name);
+    
+    if(error && self.connectRejectBlock){
+        RCTPromiseRejectBlock rjBlock = self.connectRejectBlock;
+         rjBlock(@"",@"",error);
+        self.connectRejectBlock = nil;
+        self.connectResolveBlock = nil;
+        connected = nil;
+    }else
+    if(_waitingConnect && _waitingConnect == peripheral.identifier.UUIDString){
+        RCTPromiseResolveBlock rsBlock = self.connectResolveBlock;
+        rsBlock(peripheral.identifier.UUIDString);
+        self.connectRejectBlock = nil;
+        self.connectResolveBlock = nil;
+        connected = peripheral;
+    }
+}
+
+/*!
+ *  @method peripheral:didDiscoverCharacteristicsForService:error:
+ *
+ *  @param peripheral    The peripheral providing this information.
+ *  @param service        The <code>CBService</code> object containing the characteristic(s).
+ *    @param error        If an error occurred, the cause of the failure.
+ *
+ *  @discussion            This method returns the result of a @link discoverCharacteristics:forService: @/link call. If the characteristic(s) were read successfully,
+ *                        they can be retrieved via <i>service</i>'s <code>characteristics</code> property.
+ */
+- (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(nullable NSError *)error{
+    if(toWrite && connected
+       && [connected.identifier.UUIDString isEqualToString:peripheral.identifier.UUIDString]
+       && [service.UUID.UUIDString isEqualToString:supportServices[0].UUIDString]){
+        if(error){
+            NSLog(@"Discrover charactoreristics error:%@",error);
+           if(writeDataDelegate)
+           {
+               [writeDataDelegate didWriteDataToBle:false];
+               return;
+           }
+        }
+        for(CBCharacteristic *cc in service.characteristics){
+            NSLog(@"Characterstic found: %@ in service: %@" ,cc,service.UUID.UUIDString);
+            if([cc.UUID.UUIDString isEqualToString:[writeableCharactiscs objectForKey: supportServices[0]]]){
+                @try{
+                    [connected writeValue:toWrite forCharacteristic:cc type:CBCharacteristicWriteWithoutResponse];
+                   if(writeDataDelegate) [writeDataDelegate didWriteDataToBle:true];
+                    if(toWrite){
+                        NSLog(@"Value wrote: %lu",[toWrite length]);
+                    }
+                }
+                @catch(NSException *e){
+                    NSLog(@"ERRO IN WRITE VALUE: %@",e);
+                      [writeDataDelegate didWriteDataToBle:false];
+                }
+            }
+        }
+        
+        
+    }
+    
+    if(error){
+        NSLog(@"Discrover charactoreristics error:%@",error);
+        return;
+    }
+    
+//    ServiceUUID：49535343-fe7d-4ae5-8fa9-9fafd205e455；
+//    写的是
+//characteristicUUID:49535343-8841-43f4-a8d4-ecbe34729bb3；
+//    读的是
+//characteristicUUID:49535343-1e4d-4bd9-ba61-23c647249616;
+//
+//    如果要写，翻译成base64位；
+//
+//    调用监听改变，需要去使能设备的Notify，var param={
+//    serviceUUID: '000018f0-0000-1000-8000-00805f9b34fb',//service的UUID  这个值需要获取查看设备，我暂认为他是通用的
+//    characteristicUUID:'00002af0-0000-1000-8000-00805f9b34fb',//characteristic的UUID  这个值也需要获取查看，我认为他是通用的
+//    enable:true //true 或false,开启或关闭监听
+//    };
+//    param = JSON.stringify(param);
+//    uexBluetoothLE.setCharacteristicNotification(param);
+    
+    
+    /** TESTING NSLOG OUTPUT:: ***/
+//    2018-10-01 21:29:24.136033+0800 bluetoothEscposPrinterExamples[8239:4598148] Trying to connect....D7D39238-EF56-71A7-7DCC-D464EFD3BFF1
+//    2018-10-01 21:29:24.302880+0800 bluetoothEscposPrinterExamples[8239:4598148] did connected: <CBPeripheral: 0x1c4302d90, identifier = D7D39238-EF56-71A7-7DCC-D464EFD3BFF1, name = BlueTooth Printer, state = connected>
+//    2018-10-01 21:29:24.302982+0800 bluetoothEscposPrinterExamples[8239:4598148] going to discover services.
+//    2018-10-01 21:29:24.303375+0800 bluetoothEscposPrinterExamples[8239:4598148] going to emit EVEnT_CONNECTED.
+//    2018-10-01 21:29:24.431164+0800 bluetoothEscposPrinterExamples[8239:4598148] 扫描到外设服务：BlueTooth Printer -> (
+//                                                                                                               "<CBService: 0x1c246b200, isPrimary = YES, UUID = 49535343-FE7D-4AE5-8FA9-9FAFD205E455>",
+//                                                                                                               "<CBService: 0x1c246b280, isPrimary = YES, UUID = 18F0>",
+//                                                                                                               "<CBService: 0x1c246a740, isPrimary = YES, UUID = E7810A71-73AE-499D-8C15-FAA9AEF0C3F2>"
+//                                                                                                               )
+//    2018-10-01 21:29:24.431354+0800 bluetoothEscposPrinterExamples[8239:4598148] 服务id：49535343-FE7D-4AE5-8FA9-9FAFD205E455
+//    2018-10-01 21:29:24.431448+0800 bluetoothEscposPrinterExamples[8239:4598148] 服务id：18F0
+//    2018-10-01 21:29:24.431535+0800 bluetoothEscposPrinterExamples[8239:4598148] 服务id：E7810A71-73AE-499D-8C15-FAA9AEF0C3F2
+//    2018-10-01 21:29:24.431552+0800 bluetoothEscposPrinterExamples[8239:4598148] 开始扫描外设服务的特征 BlueTooth Printer...
+//    2018-10-01 21:29:24.432374+0800 bluetoothEscposPrinterExamples[8239:4598148] Characterstic found: <CBCharacteristic: 0x1c04afa20, UUID = 49535343-1E4D-4BD9-BA61-23C647249616, properties = 0x10, value = <5f47505f 4c383031 3630>, notifying = NO> in service: 49535343-FE7D-4AE5-8FA9-9FAFD205E455
+//    2018-10-01 21:29:24.432406+0800 bluetoothEscposPrinterExamples[8239:4598148] Notify
+//    2018-10-01 21:29:24.432417+0800 bluetoothEscposPrinterExamples[8239:4598148] known properties: 16
+//    2018-10-01 21:29:24.432455+0800 bluetoothEscposPrinterExamples[8239:4598148] Characterstic found: <CBCharacteristic: 0x1c04af480, UUID = 49535343-8841-43F4-A8D4-ECBE34729BB3, properties = 0xC, value = (null), notifying = NO> in service: 49535343-FE7D-4AE5-8FA9-9FAFD205E455
+//    2018-10-01 21:29:24.432753+0800 bluetoothEscposPrinterExamples[8239:4598148] WriteWithoutResponse
+//    2018-10-01 21:29:24.432772+0800 bluetoothEscposPrinterExamples[8239:4598148] Write
+//    2018-10-01 21:29:24.432785+0800 bluetoothEscposPrinterExamples[8239:4598148] known properties: 12
+//    2018-10-01 21:29:24.432988+0800 bluetoothEscposPrinterExamples[8239:4598148] Characterstic found: <CBCharacteristic: 0x1c44ac9c0, UUID = 2AF0, properties = 0x30, value = (null), notifying = NO> in service: 18F0
+//    2018-10-01 21:29:24.433005+0800 bluetoothEscposPrinterExamples[8239:4598148] Notify
+//    2018-10-01 21:29:24.433015+0800 bluetoothEscposPrinterExamples[8239:4598148] Indicate
+//    2018-10-01 21:29:24.433024+0800 bluetoothEscposPrinterExamples[8239:4598148] known properties: 48
+//    2018-10-01 21:29:24.433079+0800 bluetoothEscposPrinterExamples[8239:4598148] Characterstic found: <CBCharacteristic: 0x1c44aca80, UUID = 2AF1, properties = 0xC, value = (null), notifying = NO> in service: 18F0
+//    2018-10-01 21:29:24.433647+0800 bluetoothEscposPrinterExamples[8239:4598148] WriteWithoutResponse
+//    2018-10-01 21:29:24.433662+0800 bluetoothEscposPrinterExamples[8239:4598148] Write
+//    2018-10-01 21:29:24.433672+0800 bluetoothEscposPrinterExamples[8239:4598148] known properties: 12
+//    2018-10-01 21:29:24.433900+0800 bluetoothEscposPrinterExamples[8239:4598148] Characterstic found: <CBCharacteristic: 0x1c44ac780, UUID = BEF8D6C9-9C21-4C9E-B632-BD58C1009F9F, properties = 0x3E, value = (null), notifying = NO> in service: E7810A71-73AE-499D-8C15-FAA9AEF0C3F2
+//    2018-10-01 21:29:24.433928+0800 bluetoothEscposPrinterExamples[8239:4598148] Read
+//    2018-10-01 21:29:24.433953+0800 bluetoothEscposPrinterExamples[8239:4598148] WriteWithoutResponse
+//    2018-10-01 21:29:24.433964+0800 bluetoothEscposPrinterExamples[8239:4598148] Write
+//    2018-10-01 21:29:24.433973+0800 bluetoothEscposPrinterExamples[8239:4598148] Notify
+//    2018-10-01 21:29:24.434378+0800 bluetoothEscposPrinterExamples[8239:4598148] Indicate
+//    2018-10-01 21:29:24.434389+0800 bluetoothEscposPrinterExamples[8239:4598148] known properties: 62
+    
+//    for(CBCharacteristic *cc in service.characteristics){
+//       // NSLog(@"Characterstic found: %@ in service: %@" ,cc,service.UUID.UUIDString);
+//        CBCharacteristicProperties pro = cc.properties;
+//        Byte p = (Byte)pro;
+////        CBCharacteristicPropertyBroadcast                                                = 0x01,
+////        CBCharacteristicPropertyRead                                                    = 0x02,
+////        CBCharacteristicPropertyWriteWithoutResponse                                    = 0x04,
+////        CBCharacteristicPropertyWrite                                                    = 0x08,
+////        CBCharacteristicPropertyNotify                                                    = 0x10,
+////        CBCharacteristicPropertyIndicate                                                = 0x20,
+////        CBCharacteristicPropertyAuthenticatedSignedWrites                                = 0x40,
+////        CBCharacteristicPropertyExtendedProperties                                        = 0x80,
+////        CBCharacteristicPropertyNotifyEncryptionRequired NS_ENUM_AVAILABLE(10_9, 6_0)    = 0x100,
+////        CBCharacteristicPropertyIndicateEncryptionRequired NS_ENUM_AVAILABLE(10_9, 6_0)    = 0x200
+//        if((p) & 0x01){
+//            NSLog(@"Broadcast");
+//        }
+//        if((p>>1) & 0x01){
+//            NSLog(@"Read");
+//        }
+//        if((p>>2) & 0x01){
+//            NSLog(@"WriteWithoutResponse");
+//        }
+//        if((p>>3) & 0x01){
+//            NSLog(@"Write");
+//        }
+//        if((p>>4) & 0x01){
+//              NSLog(@"Notify");
+//        }
+//        if((p>>5) & 0x01){
+//               NSLog(@"Indicate");
+//        }
+//        if((p>>6) & 0x01){
+//            NSLog(@"AuthenticatedSignedWrites");
+//        }
+//        if((p>>7) & 0x01){
+//            NSLog(@"ExtendedProperties");
+//        }
+//        {
+//            NSLog(@"known properties: %lu", pro);
+//        }
+//    }
+}
+
+/*!
+ *  @method peripheral:didWriteValueForCharacteristic:error:
+ *
+ *  @param peripheral        The peripheral providing this information.
+ *  @param characteristic    A <code>CBCharacteristic</code> object.
+ *    @param error            If an error occurred, the cause of the failure.
+ *
+ *  @discussion                This method returns the result of a {@link writeValue:forCharacteristic:type:} call, when the <code>CBCharacteristicWriteWithResponse</code> type is used.
+ */
+- (void)peripheral:(CBPeripheral *)peripheral didWriteValueForCharacteristic:(CBCharacteristic *)characteristic error:(nullable NSError *)error{
+    if(error){
+        NSLog(@"Error in writing bluetooth: %@",error);
+        if(writeDataDelegate){
+            [writeDataDelegate didWriteDataToBle:false];
+        }
+    }
+    
+    NSLog(@"Write bluetooth success.");
+    if(writeDataDelegate){
+        [writeDataDelegate didWriteDataToBle:true];
+    }
+}
+ 
+@end

ios/RNBluetoothTscPrinter.h

@@ -0,0 +1,13 @@
+//
+//  RNBluetoothTscPrinter.h
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/1.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+#import <React/RCTBridgeModule.h>
+#import "RNBluetoothManager.h"
+@interface RNBluetoothTscPrinter : NSObject <RCTBridgeModule,WriteDataToBleDelegate>
+
+@end
+

ios/RNBluetoothTscPrinter.m

@@ -0,0 +1,168 @@
+//
+//  RNBluetoothTscPrinter.m
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/1.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import "RNBluetoothTscPrinter.h"
+#import "RNTscCommand.h"
+#import "RNBluetoothManager.h"
+
+@implementation RNBluetoothTscPrinter
+
+NSData *toPrint;
+RCTPromiseRejectBlock _pendingReject;
+RCTPromiseResolveBlock _pendingResolve;
+NSInteger now;
+
+- (dispatch_queue_t)methodQueue
+{
+    return dispatch_get_main_queue();
+}
++ (BOOL)requiresMainQueueSetup
+{
+    return YES;
+}
+
+RCT_EXPORT_MODULE(BluetoothTscPrinter);
+//printLabel(final ReadableMap options, final Promise promise)
+RCT_EXPORT_METHOD(printLabel:(NSDictionary *) options withResolve:(RCTPromiseResolveBlock)resolve
+                  rejecter:(RCTPromiseRejectBlock)reject)
+{
+    NSInteger width = [[options valueForKey:@"width"] integerValue];
+    NSInteger height = [[options valueForKey:@"height"] integerValue];
+    NSInteger gap = [[options valueForKey:@"gap"] integerValue];
+    NSInteger home = [[options valueForKey:@"home"] integerValue];
+    NSString *tear = [options valueForKey:@"tear"];
+    if(!tear || ![@"ON" isEqualToString:tear]) tear = @"OFF";
+    NSArray *texts = [options objectForKey:@"text"];
+    NSArray *qrCodes = [options objectForKey:@"qrcode"];
+    NSArray *barCodes = [options objectForKey:@"barcode"];
+    NSArray *images = [options objectForKey:@"image"];
+    NSArray *reverses = [options objectForKey:@"revers"];
+    NSInteger direction = [[options valueForKey:@"direction"] integerValue];
+    NSInteger density = [[options valueForKey:@"density"] integerValue];
+    NSArray* reference = [options objectForKey:@"reference"];
+    NSInteger sound = [[options valueForKey:@"sound"] integerValue];
+    NSInteger speed = [[options valueForKey:@"speed"] integerValue];
+    RNTscCommand *tsc = [[RNTscCommand alloc] init];
+    if(speed){
+        [tsc addSpeed:[tsc findSpeedValue:speed]];
+    }
+    if(density){
+        [tsc addDensity:density];
+    }
+    [tsc addSize:width height:height];
+    [tsc addGap:gap];
+    [tsc addDirection:direction];
+    if(reference && [reference count] ==2){
+        NSInteger x = [[reference objectAtIndex:0] integerValue];
+        NSInteger y = [[reference objectAtIndex:1] integerValue];
+        NSLog(@"refernce  %ld y:%ld ",x,y);
+        [tsc addReference:x y:y];
+    }else{
+        [tsc addReference:0 y:0];
+    }
+    [tsc addTear:tear];
+    if(home && home == 1){
+      [tsc addBackFeed:16];
+      [tsc addHome];
+    }
+    [tsc addCls];
+
+    //Add Texts
+    for(int i=0; texts && i<[texts count];i++){
+        NSDictionary * text = [texts objectAtIndex:i];
+        NSString *t = [text valueForKey:@"text"];
+        NSInteger x = [[text valueForKey:@"x"] integerValue];
+        NSInteger y = [[text valueForKey:@"y"] integerValue];
+        NSString *fontType = [text valueForKey:@"fonttype"];
+        NSInteger rotation = [[text valueForKey:@"rotation"] integerValue];
+        NSInteger xscal = [[text valueForKey:@"xscal"] integerValue];
+        NSInteger yscal = [[text valueForKey:@"yscal"] integerValue];
+        Boolean bold = [[text valueForKey:@"bold"] boolValue];
+
+        [tsc addText:x y:y fontType:fontType rotation:rotation xscal:xscal yscal:yscal text:t];
+        if(bold){
+            [tsc addText:x+1 y:y fontType:fontType
+                rotation:rotation xscal:xscal yscal:yscal  text:t];
+            [tsc addText:x y:y+1 fontType:fontType
+                rotation:rotation xscal:xscal yscal:yscal  text:t];
+        }
+    }
+
+  //images
+        for (int i = 0; images && i < [images count]; i++) {
+            NSDictionary *img = [images objectAtIndex:i];
+            NSInteger x = [[img valueForKey:@"x"] integerValue];
+            NSInteger y = [[img valueForKey:@"y"] integerValue];
+            NSInteger imgWidth = [[img valueForKey:@"width"] integerValue];
+            NSInteger mode = [[img valueForKey:@"mode"] integerValue];
+            NSString *image  = [img valueForKey:@"image"];
+            NSData *imageData = [[NSData alloc] initWithBase64EncodedString:image options:0];
+            UIImage *uiImage = [[UIImage alloc] initWithData:imageData];
+            [tsc addBitmap:x y:y bitmapMode:mode width:imgWidth bitmap:uiImage];
+        }
+
+    //QRCode
+    for (int i = 0; qrCodes && i < [qrCodes count]; i++) {
+        NSDictionary *qr = [qrCodes objectAtIndex:i];
+        NSInteger x = [[qr valueForKey:@"x"] integerValue];
+        NSInteger y = [[qr valueForKey:@"y"] integerValue];
+        NSInteger qrWidth = [[qr valueForKey:@"width"] integerValue];
+        NSString *level = [qr valueForKey:@"level"];
+        if(!level)level = @"M";
+        NSInteger rotation = [[qr valueForKey:@"rotation"] integerValue];
+        NSString *code = [qr valueForKey:@"code"];
+        [tsc addQRCode:x y:y errorCorrectionLevel:level width:qrWidth rotation:rotation code:code];
+    }
+
+    //BarCode
+   for (int i = 0; barCodes && i < [barCodes count]; i++) {
+       NSDictionary *bar = [barCodes objectAtIndex:i];
+       NSInteger x = [[bar valueForKey:@"x"] integerValue];
+       NSInteger y = [[bar valueForKey:@"y"] integerValue];
+       NSInteger barWide =[[bar valueForKey:@"wide"] integerValue];
+       if(!barWide) barWide = 2;
+       NSInteger barHeight = [[bar valueForKey:@"height"] integerValue];
+       NSInteger narrow = [[bar valueForKey:@"narrow"] integerValue];
+       if(!narrow) narrow = 2;
+       NSInteger rotation = [[bar valueForKey:@"rotation"] integerValue];
+       NSString *code = [bar valueForKey:@"code"];
+       NSString *type = [bar valueForKey:@"type"];
+       NSInteger readable = [[bar valueForKey:@"readable"] integerValue];
+       [tsc add1DBarcode:x y:y barcodeType:type height:barHeight wide:barWide narrow:narrow readable:readable rotation:rotation content:code];
+    }
+    for(int i=0; reverses&& i < [reverses count]; i++){
+        NSDictionary *area = [reverses objectAtIndex:i];
+        NSInteger ax = [[area valueForKey:@"x"] integerValue];
+        NSInteger ay = [[area valueForKey:@"y"] integerValue];
+        NSInteger aWidth = [[area valueForKey:@"width"] integerValue];
+        NSInteger aHeight = [[area valueForKey:@"height"] integerValue];
+        [tsc addReverse:ax y:ay xwidth:aWidth yheigth:aHeight];
+    }
+    [tsc addPrint:1 n:1];
+    if (sound) {
+        [tsc addSound:2 interval:100];
+    }
+    _pendingReject = reject;
+    _pendingResolve = resolve;
+    toPrint = tsc.command;
+    now = 0;
+    [RNBluetoothManager writeValue:toPrint withDelegate:self];
+}
+
+- (void) didWriteDataToBle: (BOOL)success{
+    if(success){
+        if(_pendingResolve){
+            _pendingResolve(nil);
+        }
+    }else if(_pendingReject){
+        _pendingReject(@"PRINT_ERROR",@"PRINT_ERROR",nil);
+    }
+}
+
+@end

ios/RNTscCommand.h

@@ -0,0 +1,72 @@
+//
+//  RNTscCommand.h
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/9.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+#import <Foundation/Foundation.h>
+#import <React/RCTBridgeModule.h>
+@interface RNTscCommand : NSObject
+@property NSMutableData *command;
+-(id)init;
+-(id)initWithSize:(NSInteger)width height:(NSInteger) height andGap:(NSInteger)gap;
+-(void)addStrToCommand:(NSString *)str;
+-(void)addGap:(NSInteger)gap;
+-(void)addSize:(NSInteger)width height:(NSInteger) height;
+-(void)addCashdrwer:(NSInteger) m/*0,1*/ t1:(NSInteger) t1 t2:(NSInteger) t2;
+-(void)addOffset:(NSInteger) offset;
+-(void)addSpeed:(float) speed;/*   SPEED1DIV5(1.5F), SPEED2(2.0F), SPEED3(3.0F), SPEED4(4.0F); */
+
+/*   DNESITY0(0), DNESITY1(1), DNESITY2(2), DNESITY3(3), DNESITY4(4), DNESITY5(5), DNESITY6(6), DNESITY7(
+ 7), DNESITY8(8), DNESITY9(9), DNESITY10(10), DNESITY11(11), DNESITY12(12), DNESITY13(13), DNESITY14(
+ 14), DNESITY15(15) */
+-(void)addDensity:(NSInteger)density;
+-(void)addDirection:(NSInteger) direction;/*  FORWARD(0), BACKWARD(1);*/
+-(void)addReference:(NSInteger) x y:(NSInteger) y;
+-(void)addShif:(NSInteger) shif;
+-(void)addCls;
+-(void)addFeed:(NSInteger) dot;
+-(void)addBackFeed:(NSInteger) backDot;
+-(void)addFormFeed;
+-(void)addHome;
+-(void)addPrint:(NSInteger) m n:(NSInteger) n;
+
+/*       PC437(437), PC850(850), PC852(852), PC860(860), PC863(863), PC865(865), WPC1250(1250), WPC1252(1252), WPC1253(
+ 1253), WPC1254(1254);  */
+-(void)addCodePage:(NSInteger) page;
+-(void)addSound:(NSInteger) level  interval:(NSInteger) interval;
+-(void)addLimitFeed:(NSInteger) n;
+-(void)addSelfTest;
+
+-(void)addBar:(NSInteger) x y:(NSInteger) y
+        width:(NSInteger) width heigth:(NSInteger) height;
+
+-(void)addText:(NSInteger) x y:(NSInteger) y
+      fontType:(NSString *) font rotation:(NSInteger) rotation
+         xscal:(NSInteger) Xscal yscal:(NSInteger) Yscal
+          text:(NSString *) text;
+
+-(void)add1DBarcode:(NSInteger) x y:(NSInteger) y
+        barcodeType:(NSString *) type height:(NSInteger) height
+        wide:(NSInteger) wide narrow:(NSInteger) narrow
+           readable:(NSInteger) readable rotation:(NSInteger) rotation
+            content:(NSString *) content;
+-(void)addQRCode:(NSInteger) x y:(NSInteger) y errorCorrectionLevel:(NSString *) level
+           width:(NSInteger) qrWidth rotation:(NSInteger) rotation
+            code:(NSString *) code;
+
+-(void)addBitmap:(NSInteger) x y:(NSInteger) y
+      bitmapMode:(NSInteger) mode width:(NSInteger) nWidth
+          bitmap:(UIImage *) b;
+-(void)addBox:(NSInteger) x y:(NSInteger) y xend:(NSInteger) xend yend:(NSInteger) yend;
+-(void)addErase:(NSInteger) x y:(NSInteger) y xwidth:(NSInteger) xwidth yheigth:(NSInteger) yheight;
+-(void)addReverse:(NSInteger) x y:(NSInteger) y xwidth:(NSInteger) xwidth yheigth:(NSInteger) yheight;
+-(void)addPeel:(NSString *) enable;
+-(void)addTear:(NSString *) enable;
+-(void)addCutter:(NSString *) enable;
+-(void)addPartialCutter :(NSString *) enable;
+
+-(float)findSpeedValue:(NSInteger) sp;
+
+@end

ios/RNTscCommand.m

@@ -0,0 +1,233 @@
+//
+//  RNTscCommand.m
+//  RNBluetoothEscposPrinter
+//
+//  Created by januslo on 2018/10/9.
+//  Copyright © 2018年 Facebook. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+#import "RNTscCommand.h"
+#import "ImageUtils.h"
+@implementation RNTscCommand
+-(id)init
+{
+    _command = [[NSMutableData alloc] init];
+    return self;
+}
+-(id)initWithSize:(NSInteger)width height:(NSInteger) height andGap:(NSInteger)gap
+{
+    _command = [[NSMutableData alloc] init];
+    [self addSize:width height:height];
+    [self addGap:gap];
+    return self;
+}
+-(void)addStrToCommand:(NSString *)str
+{
+    if(str){
+    //encoding GBK? UTF-8? GB2312?
+        [_command appendData:[str dataUsingEncoding:CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000)]];
+    }
+}
+-(void)addGap:(NSInteger)gap
+{
+    [self addStrToCommand:[NSString stringWithFormat:@"GAP %lu mm,%d mm\r\n",(int)gap,0]];
+}
+-(void)addSize:(NSInteger)width height:(NSInteger) height
+{
+     [self addStrToCommand:[NSString stringWithFormat:@"SIZE %ld mm,%ld mm\r\n",width,height]];
+}
+-(void)addCashdrwer:(NSInteger) m/*0,1*/ t1:(NSInteger) t1 t2:(NSInteger) t2
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"CASHDRAWER %ld,%ld,%ld\r\n",m,t1,t2]];
+}
+-(void)addOffset:(NSInteger) offset
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"OFFSET %ld mm\r\n",offset]];
+}
+
+/*   SPEED1DIV5(1.5F), SPEED2(2.0F), SPEED3(3.0F), SPEED4(4.0F){ } */
+-(void)addSpeed:(float) speed
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"SPEED %f\r\n",speed]];
+}
+
+/*   DNESITY0(0), DNESITY1(1), DNESITY2(2), DNESITY3(3), DNESITY4(4), DNESITY5(5), DNESITY6(6), DNESITY7(
+ 7), DNESITY8(8), DNESITY9(9), DNESITY10(10), DNESITY11(11), DNESITY12(12), DNESITY13(13), DNESITY14(
+ 14), DNESITY15(15) */
+-(void)addDensity:(NSInteger)density
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"DENSITY %ld\r\n",density]];
+}
+
+/*  FORWARD(0), BACKWARD(1){ }*/
+-(void)addDirection:(NSInteger) direction
+{
+    [self addStrToCommand:[NSString stringWithFormat:@"DIRECTION %ld\r\n",direction]];
+}
+
+-(void)addReference:(NSInteger) x y:(NSInteger) y
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"REFERENCE %ld,%ld\r\n",x,y]];
+}
+-(void)addShif:(NSInteger) shif
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"SHIFT %ld\r\n",shif]];
+}
+-(void)addCls
+{
+      [self addStrToCommand:@"CLS\r\n"];
+}
+-(void)addFeed:(NSInteger) dot
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"FEED %ld\r\n",dot]];
+}
+-(void)addBackFeed:(NSInteger) backDot
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"BACKFEED %ld\r\n",backDot]];
+}
+-(void)addFormFeed
+{
+    [self addStrToCommand:@"FORMFEED\r\n"];
+}
+-(void)addHome
+{
+      [self addStrToCommand:@"HOME\r\n"];
+}
+-(void)addPrint:(NSInteger) m n:(NSInteger) n
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"PRINT %ld,%ld\r\n",m,n]];
+}
+
+/*       PC437(437), PC850(850), PC852(852), PC860(860), PC863(863), PC865(865), WPC1250(1250), WPC1252(1252), WPC1253(
+ 1253), WPC1254(1254){ }  */
+-(void)addCodePage:(NSInteger) page
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"CODEPAGE %ld\r\n",page]];
+}
+-(void)addSound:(NSInteger) level  interval:(NSInteger) interval
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"SOUND %ld,%ld\r\n",level,interval]];
+}
+-(void)addLimitFeed:(NSInteger) n
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"LIMITFEED %ld\r\n",n]];
+}
+-(void)addSelfTest
+{
+      [self addStrToCommand:@"SELFTEST\r\n"];
+}
+
+-(void)addBar:(NSInteger) x y:(NSInteger) y
+width:(NSInteger) width heigth:(NSInteger) height
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"BAR %ld,%ld,%ld,%ld\r\n",
+                             x,y,width,height]];
+}
+
+-(void)addText:(NSInteger) x y:(NSInteger) y
+fontType:(NSString *) font rotation:(NSInteger) rotation
+xscal:(NSInteger) Xscal yscal:(NSInteger) Yscal
+text:(NSString *) text
+{
+    [self addStrToCommand:[NSString stringWithFormat:@"TEXT %ld,%ld,\"%@\",%ld,%ld,%ld,\"%@\"\r\n",
+                           x,y,font,rotation,Xscal,Yscal,text]];
+}
+
+-(void)add1DBarcode:(NSInteger) x y:(NSInteger) y
+barcodeType:(NSString *) type height:(NSInteger) height
+  wide:(NSInteger) wide narrow:(NSInteger) narrow
+readable:(NSInteger) readable rotation:(NSInteger) rotation
+content:(NSString *) content
+{
+    //str = "BARCODE " + x + "," + y + "," + "\"" + type.getValue() + "\"" + "," + height + "," + readable.getValue()
+   // + "," + rotation.getValue() + "," + narrow + "," + wide + "," + "\"" + content + "\"" + "\r\n";
+    NSString *c =[NSString stringWithFormat:@"BARCODE %ld,%ld,\"%@\",%ld,%ld,%ld,%d,%d,\"%@\"\r\n",
+                  x,y,type,height,readable,rotation,narrow,wide,content];
+    NSLog(@"BARCODE COMMAND:%@",c);
+    [self addStrToCommand:c];
+}
+
+-(void)addQRCode:(NSInteger) x y:(NSInteger) y errorCorrectionLevel:(NSString *) level
+width:(NSInteger) qrWidth rotation:(NSInteger) rotation
+code:(NSString *) code
+{
+    [self addStrToCommand:[NSString stringWithFormat:@"QRCODE %ld,%ld,%@,%ld,A,%ld,M2,S1,\"%@\"\r\n",
+                           x,y,level,qrWidth,rotation,code]];
+}
+
+-(void)addBitmap:(NSInteger) x y:(NSInteger) y
+bitmapMode:(NSInteger) mode width:(NSInteger) nWidth
+bitmap:(UIImage *) b{
+    //todo: NEED TO IMPLEMENT>>>>>>
+    if (b) {
+        CGFloat imgWidth = b.size.width;
+        CGFloat imgHeigth = b.size.height;
+        NSInteger width = (nWidth + 7) / 8 * 8;
+        NSInteger height = imgHeigth * width / imgWidth;
+        UIImage *resized = [ImageUtils imageWithImage:b scaledToFillSize:CGSizeMake(width, height)];
+        uint8_t * graybits = [ImageUtils imageToGreyImage:resized];
+        NSInteger srcLen = (int)resized.size.width*resized.size.height;
+        NSData *codecontent = [ImageUtils pixToTscCmd:graybits width:srcLen];
+        height = srcLen / width;
+        width /= 8;
+        NSString *str =[NSString stringWithFormat:@ "BITMAP %ld,%ld,%ld,%ld,%ld,",
+                        x,y,width,height,mode];
+        [self addStrToCommand:str];
+        [_command appendData:codecontent];
+        [self addStrToCommand:@"\r\n"];
+    }
+    
+}
+-(void)addBox:(NSInteger) x y:(NSInteger) y xend:(NSInteger) xend yend:(NSInteger) yend
+{
+    [self addStrToCommand:[NSString stringWithFormat:@"BAR %ld,%ld,%ld,%ld\r\n",
+                           x,y,xend,yend]];
+}
+-(void)addErase:(NSInteger) x y:(NSInteger) y xwidth:(NSInteger) xwidth yheigth:(NSInteger) yheight
+{
+    [self addStrToCommand:[NSString stringWithFormat:@"ERASE %ld,%ld,%ld,%ld\r\n",
+                           x,y,xwidth,yheight]];
+}
+-(void)addReverse:(NSInteger) x y:(NSInteger) y xwidth:(NSInteger) xwidth yheigth:(NSInteger) yheight
+{
+    [self addStrToCommand:[NSString stringWithFormat:@"REVERSE %ld,%ld,%ld,%ld\r\n",
+                           x,y,xwidth,yheight]];
+}
+-(void)addPeel:(NSString *) enable
+{
+    [self addStrToCommand:[NSString stringWithFormat:@"SET PEEL %@\r\n",enable]];
+}
+-(void)addTear:(NSString *) enable
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"SET TEAR %@\r\n",enable]];
+}
+-(void)addCutter:(NSString *) enable
+{
+      [self addStrToCommand:[NSString stringWithFormat:@"SET CUTTER %@\r\n",enable]];
+}
+-(void)addPartialCutter :(NSString *) enable
+{
+     [self addStrToCommand:[NSString stringWithFormat:@"SET PARTIAL_CUTTER %@\r\n",enable]];
+}
+
+-(float)findSpeedValue:(NSInteger) sp{
+    // SPEED1DIV5(1.5F), SPEED2(2.0F), SPEED3(3.0F), SPEED4(4.0F);
+    switch (sp) {
+        case 2:
+            return 2.0f;
+            break;
+        case 3:
+            return 3.0f;
+            break;
+        case 4:
+            return 4.0f;
+            break;
+        case 1:
+        default:
+            return 1.5f;
+            break;
+    }
+}
+@end

ios/ZXingObjC-3.2.2/.gitattributes

@@ -0,0 +1 @@
+*.pbxproj merge=union